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1. Inactivation of airborne bacteria using different UV sources: Performance modeling, energy utilization, and endotoxin degradation

Author:
Wang, Can,   et al.   ; Lu, Siyi; Zhang, Zhiwei;     Show all 3 Authors
Source:
The Science of the total environment 2019 v.655 pp. 787-795
ISSN:
0048-9697
Subject:
Escherichia coli; adverse effects; air; airborne microorganisms; bioaerosols; disinfection; endotoxins; energy; human health; irradiation; models; ozone; prediction; ultraviolet radiation
Abstract:
... Airborne bacteria-containing bioaerosols have attracted increased research attention on account of their adverse effects on human health. Ultraviolet germicidal irradiation (UVGI) is an effective method to inactivate airborne microorganisms. The present study models and compares the inactivation performance of three UV sources in the UVGI for aerosolized Escherichia coli. Inactivation efficiency o ...
DOI:
10.1016/j.scitotenv.2018.11.266

2. Influence of different extraction methods on prehistoric phytolith radiocarbon dating

Author:
Wang, Can,   et al.   ; Zuo, Xinxin; Lu, Houyuan; Huan, Xiujia; Jiang, Leping;     Show all 5 Authors
Source:
Quaternary international 2019 v.528 pp. 4-8
ISSN:
1040-6182
Subject:
carbon; hydrochloric acid; hydrogen peroxide; phytoliths; radiocarbon dating; soil; China
Abstract:
... The use of carbon in phytoliths for radiocarbon dating is recognized as a non-traditional radiocarbon dating method. Its reliability in constructing the chronological sequence of archaeological sites has been questioned in recent studies. The influence of different phytolith extraction methods on dating results has been considered as the potential cause of distortion in phytolith dating. However, ...
DOI:
10.1016/j.quaint.2018.12.002

3. Incorporating health impacts into a differentiated pollution tax rate system: A case study in the Beijing-Tianjin-Hebei region in China

Author:
Wang, Can,   et al.   ; Zhang, Shihui; Mendelsohn, Robert; Cai, Wenjia; Cai, Bofeng;     Show all 5 Authors
Source:
Journal of environmental management 2019
ISSN:
0301-4797
Subject:
case studies; coal; environmental health; issues and policy; models; nitrogen oxides; particulates; pollution; power plants; sulfur dioxide; China
Abstract:
... This paper argues for an efficient pollution tax rate system that reflects the differentiation of marginal health damages of the individual emission sources. Although China is the first country in the world to launch a regionally differentiated pollution tax rate program, due to the absence of marginal damage estimation, whether this policy is efficient and equitable remains unknown. In this paper ...
DOI:
10.1016/j.jenvman.2019.109527

4. Exploring the impacts of biofuel expansion on land use change and food security based on a land explicit CGE model: A case study of China

Author:
Wang, Can,   et al.   ; Weng, Yuwei; Chang, Shiyan; Cai, Wenjia;     Show all 4 Authors
Source:
Applied energy 2019 v.236 pp. 514-525
ISSN:
0306-2619
Subject:
bioethanol; case studies; corn; cropland; econometric models; energy; energy crops; ethanol; feedstocks; food availability; food grains; food prices; food security; forests; gasoline; grasslands; issues and policy; land use change; land use planning; markets; planting; rice; China
Abstract:
... Biofuel plays an important role in the transition to low-carbon energy systems. However, the large-scale expansion of biofuels may cause drastic land use change (LUC) due to feedstock cultivation and further result in other sustainability impacts (e.g., food supply), which are the key concerns for policy makers when designing bioenergy policies. However, biophysical models omit the indirect LUC fr ...
DOI:
10.1016/j.apenergy.2018.12.024

5. Grain size of surface sediments in Selin Co (central Tibet) linked to water depth and offshore distance

Author:
Wang, Can,   et al.   ; Wang, Hailei; Song, Gao; Zheng, Mianping;     Show all 4 Authors
Source:
Journal of paleolimnology 2019 v.61 no.2 pp. 217-229
ISSN:
0921-2728
Subject:
atmospheric precipitation; cobalt; frequency distribution; lakes; limnology; paleontology; rivers; runoff; sediments; wind; China
Abstract:
... Grain size of lake sediments is often measured in paleolimnological studies, especially investigations of past lake-level changes. The paleohydrologic implications of such measures, however, remain unclear. We explored the relationship between grain-size characteristics of surface sediments in Selin Co, central Tibet (Median Diameter (Md), fine component percentage, and the grain-size frequency di ...
DOI:
10.1007/s10933-018-0054-8

6. Detecting urban land-use configuration effects on NO2 and NO variations using geographically weighted land use regression

Author:
Wang, Can,   et al.   ; Song, Weize; Jia, Haifeng; Li, Zhilin; Tang, Deliang;     Show all 5 Authors
Source:
Atmospheric environment 2019 v.197 pp. 166-176
ISSN:
1352-2310
Subject:
air pollutants; air pollution; atmospheric chemistry; cities; land use; models; nitric oxide; nitrogen dioxide; prediction
Abstract:
... Land use regression (LUR) has been used to predict NO2 and NO distribution. However, previous studies overlooked the possibility that the effect of land-use configuration on NO2 and NO may not always be constant across the study domain. The objective of this study was to depict the spatially varying effect so as to better predict NO2 and NO. First, a LUR model was adopted to screen the land-use fa ...
DOI:
10.1016/j.atmosenv.2018.10.031

7. Enhanced enzymatic hydrolysis of wheat straw via a combination of alkaline hydrogen peroxide and lithium chloride/N,N-dimethylacetamide pretreatment

Author:
Wang, Can,   et al.   ; Li, Hailong; Xiong, Lian; Chen, Xindong; Luo, Mutan; Chen, Xuefang; Huang, Chao; Chen, Xinde;     Show all 8 Authors
Source:
Industrial crops and products 2019 v.137 pp. 332-338
ISSN:
0926-6690
Subject:
cellulose; crystal structure; delignification; endo-1,4-beta-glucanase; enzymatic hydrolysis; hydrogen bonding; hydrogen peroxide; hydrolysis; lithium chloride; saccharification; sugars; synergism; wheat straw; xylan; xylanases
Abstract:
... The aim of this work was to enhance enzymatic hydrolysis of wheat straw (WS) via a combination of alkaline hydrogen peroxide (AHP) and lithium chloride/N,N-dimethylacetamide (LiCl/DMAc) pretreatment. The physicochemical structural changes of pretreated WS were systematically characterized. Furthermore, the hydrolytic efficiency and synergistic action between xylanase and cellulase in the enzymatic ...
DOI:
10.1016/j.indcrop.2019.05.027

8. A nanoscale ferroferric oxide coated biochar derived from mushroom waste to rapidly remove Cr(VI) and mechanism study

Author:
Wang, Can,   et al.   ; Tan, Hang; Liu, Huakang; Wu, Bin; Xu, Fei; Xu, Heng;     Show all 6 Authors
Source:
Bioresource technology reports 2019 v.7 pp. 100253
ISSN:
2589-014X
Subject:
Lentinula edodes; X-ray diffraction; X-ray photoelectron spectroscopy; agricultural wastes; ammonium nitrogen; biochar; carbonization; chemical oxygen demand; chromium; copper; experimental design; iron; lead; liquids; magnetism; mushrooms; nanomaterials; nickel; pH; recycling
Abstract:
... We developed a magnetic nano-material from spent Lentinula edodes substrate (LES), which was coated with nano-magnet after carbonization to remove Cr(VI). LES was given polyporous and crinkly surface structure after carbonization and the iron modification, which significantly improved its Cr affinity. X-ray diffraction analysis verified nano-Fe3O4 crystal formation on LES biochar (LBC) surface and ...
DOI:
10.1016/j.biteb.2019.100253

9. Iodine-Promoted N–H/α,β-C(sp³)-Trifunctionalization of l-Proline: Access to 3,4-Dihydrobenzo[b][1,7]naphthyridines via Consecutive Decarboxylation/Ring Opening/Dicyclization

Author:
Wang, Can,   et al.   ; Geng, Xiao; Zhao, Peng; Zhou, You; Wu, Yan-Dong; Wu, An-Xin;     Show all 6 Authors
Source:
Organic letters 2019 v.21 no.13 pp. 4939-4943
ISSN:
1523-7052
Subject:
chemical structure; decarboxylation; heterocyclic nitrogen compounds; metabolism; proline; reaction mechanisms
Abstract:
... A N–H/α,β-C(sp³)-trifunctionalization of l-proline, proceeding through an iodine-promoted consecutive decarboxylation/ring-opening/dicyclization process, is achieved. This strategy affords structurally diverse fused N-heterocycles in good yields with a wide substrate scope. Preliminary mechanistic studies indicate that catabolism of l-proline might be involved in this cascade reaction and the in s ...
DOI:
10.1021/acs.orglett.9b01277

10. Detection and identification of the oxidizing species generated from the physiologically important Fenton-like reaction of iron(II)-citrate with hydrogen peroxide

Author:
Wang, Can,   et al.   ; Zeng, Binglin; Zhang, Peifeng; Zheng, Meiqing; Xiao, Nao; Han, Jialun; Wang, Zheng; Zhao, Zhongwei;     Show all 8 Authors
Source:
Archives of biochemistry and biophysics 2019 v.668 pp. 39-45
ISSN:
0003-9861
Subject:
fluorescence; hydrogen peroxide; hydroxyl radicals; iron; nuclear magnetic resonance spectroscopy; oxidative stress; pH; reaction mechanisms
Abstract:
... The Fenton-like reaction of iron(II)-citrate with hydrogen peroxide is physiologically important because it is associated with the oxidative stress and pathological processes induced by the redox-active iron pool in vivo. However, the oxidizing species generated from this reaction at neutral pH has not been convincingly identified because two extremely unstable and hard-to-differentiate species, t ...
DOI:
10.1016/j.abb.2019.05.006

11. I₂/PhI(OAc)₂ Copromoted Amination Reaction: Synthesis of α-Dicarbonylsulfoximine Derivatives by Incorporating an Intact Dimethyl Sulfoxide

Author:
Wang, Can,   et al.   ; Zhao, Peng; Wu, Xia; Geng, Xiao; Zhou, You; Wu, Yan-Dong; Wu, An-Xin;     Show all 7 Authors
Source:
Journal of organic chemistry 2019 v.84 no.12 pp. 8322-8329
ISSN:
1520-6904
Subject:
Lewis acids; amination; chemical bonding; chemical structure; dimethyl sulfoxide; organic chemistry; solvents
Abstract:
... An I₂/PhI(OAc)₂ copromoted strategy using dimethyl sulfoxide as an “S/C2/O” source for preparing α-dicarbonylsulfoximine derivatives is reported. This process involves oxidative coupling to construct a C–N bond and electrophilic amination of dimethyl sulfoxide to afford an N═S bond, with dimethyl sulfoxide present in the final product as an intact molecule. Furthermore, tetramethylene sulfoxide as ...
DOI:
10.1021/acs.joc.9b01160

12. ZnₓCo₁–ₓMoS₃ Microboxes from Metal–Organic Frameworks as Efficient Electrocatalysts for Hydrogen Evolution Reaction

Author:
Wang, Can,   et al.   ; Zhang, Li; Yang, Lifan; Xu, Guancheng; Wang, Weiwei; Song, Huijun; Jia, Dianzeng;     Show all 7 Authors
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.11 pp. 9800-9807
ISSN:
2168-0485
Subject:
ammonium compounds; annealing; catalysts; clean energy; cobalt; coordination polymers; durability; electrochemistry; electrolysis; environmental impact; fossil fuels; hydrogen; hydrogen production; sulfides; synergism; water solubility; zinc
Abstract:
... The increasingly exhausted fossil energy reserve and the current serious ecological problems make people pay more attention to renewable clean energy sources such as hydrogen. Highly active, low-cost, and stable electrocatalysts are crucial for producing hydrogen through water electrolysis, and the development of them is an appealing but challenging task. Herein, MOFs-derived ZnₓCo₁–ₓMoS₃ microbox ...
DOI:
10.1021/acssuschemeng.9b00197

13. Spatiotemporal dynamics of CO2 emissions from central heating supply in the North China Plain over 2012–2016 due to natural gas usage

Author:
Wang, Can,   et al.   ; Cui, Yuanzheng; Zhang, Weishi; Streets, David G.; Xu, Ying; Du, Mingxi; Lin, Jintai;     Show all 7 Authors
Source:
Applied energy 2019 v.241 pp. 245-256
ISSN:
0306-2619
Subject:
boilers; burning; carbon; carbon cycle; carbon dioxide; cities; climate change; coal; energy; greenhouse gas emissions; heat; issues and policy; natural gas; physical models; regression analysis; satellites; China
Abstract:
... Energy consumption from central heating has rapidly increased in the cities of the North China Plain (NCP). The increasing use of natural gas in the central heating supply system may have altered the spatial and temporal patterns of CO2 emissions from central heating, yet the quantitative impacts are poorly understood. Here we detect the spatio-temporal dynamics of CO2 emissions of central heating ...
DOI:
10.1016/j.apenergy.2019.03.060

14. A fluorescent and colorimetric probe based on naphthalene diimide and its high sensitivity towards copper ions when used as test strips

Author:
Wang, Can,   et al.   ; Zong, Luyi; Song, Yuchen; Hu, Jie; Li, Qianqian; Li, Zhen;     Show all 6 Authors
Source:
RSC advances 2019 v.9 no.22 pp. 12675-12680
ISSN:
2046-2069
Subject:
colorimetry; copper; detection limit; fluorescence; naphthalene
Abstract:
... Herein, a red fluorescent and colorimetric probe (NDI-Py) based on naphthalene diimide was designed and synthesized, which exhibited rapid response, high sensitivity and selectivity towards copper ions, and the detection limit was as low as 0.97 μM in solution. Furthermore, NDI-Py demonstrated a strong red emission in the aggregated state because of its non-planar structure. Thus, it can act as a ...
DOI:
10.1039/c9ra01122f

15. Direct Synthesis of 2,3-Diaroyl Quinolines and Pyridazino[4,5-b]quinolines via an I₂-Promoted One-Pot Multicomponent Reaction

Author:
Wang, Can,   et al.   ; Zhao, Peng; Wu, Xia; Zhou, You; Geng, Xiao; Wu, Yan-dong; Wu, An-Xin;     Show all 7 Authors
Source:
Organic letters 2019 v.21 no.8 pp. 2708-2711
ISSN:
1523-7052
Subject:
amines; chemical structure; cycloaddition reactions; ketones; quinoline
Abstract:
... The first synthesis of 2,3-diaroyl quinolines via a formal [3 + 2 + 1] cycloaddition of enaminones, aryl methyl ketones, and aryl amines is disclosed. This reaction efficiently affords a 1,4-dicarbonyl scaffold, which is a useful building block for constructing complex fused heterocycles. Furthermore, the 1,4-dicarbonyl scaffold has been used directly to prepare pyridazino[4,5-b]quinoline skeleton ...
DOI:
10.1021/acs.orglett.9b00685

16. Assessment of the potential and distribution of an energy crop at 1-km resolution from 2010 to 2100 in China – The case of sweet sorghum

Author:
Wang, Can,   et al.   ; Nie, Yaoyu; Cai, Wenjia; Huang, Guorui; Ding, Qun; Yu, Le; Li, Haoran; Ji, Duoying;     Show all 8 Authors
Source:
Applied energy 2019 v.239 pp. 395-407
ISSN:
0306-2619
Subject:
agricultural land; biofuels; climate change; crop management; energy crops; geographic information systems; land use change; models; planning; soil; sweet sorghum; topography; uncertainty; China
Abstract:
... Biofuel from energy crops will play an important role in supplying carbon-neutral fuel for the transport sector. However, there are large uncertainties regarding energy crop development and the energy crop potential and distribution need to be evaluated more comprehensively and systematically. In this study, we propose an integrated approach using the AquaCrop model, a geographic information syste ...
DOI:
10.1016/j.apenergy.2019.01.214

17. Interface Energy-Level Alignment between Black Phosphorus and F₁₆CuPc Molecular Films

Author:
Wang, Can,   et al.   ; Niu, Dongmei; Zhao, Yuan; Wang, Shitan; Qian, Chuan; Huang, Han; Xie, Haipeng; Gao, Yongli;     Show all 8 Authors
Source:
Journal of physical chemistry 2019 v.123 no.16 pp. 10443-10450
ISSN:
1932-7455
Subject:
X-ray photoelectron spectroscopy; energy; phosphorus; physical chemistry; semiconductors; van der Waals forces
Abstract:
... The organic/inorganic semiconductor interfaces play a key role in determining the functionality of charge injection devices. The energy-level alignment at the interfaces between two in-plane organic materials (F₁₆CuPc and CuPc) and single-crystal black phosphorus was systematically studied by in situ ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS). In this w ...
DOI:
10.1021/acs.jpcc.9b01541

18. Determination of design parameters and cost-effectiveness analysis for a two-liquid phase biofilter treating gaseous dichloromethane

Author:
Wang, Can,   et al.   ; Han, Meng-Fei; Yang, Nan-Yang; Li, Yun-Fei;     Show all 4 Authors
Source:
Biochemical engineering journal 2019 v.143 pp. 81-90
ISSN:
1369-703X
Subject:
biofilters; biofiltration; biomass; cost effectiveness; hydrophobicity; liquids; mathematical models; methylene chloride; oils; silicone; specific growth rate; steam; volatile organic compounds
Abstract:
... Two-liquid phase biofilter (TLPB) is a new type biofiltration system for controlling hydrophobic volatile organic compounds. In this paper, a mathematical model was developed for a TLPB that can treat gaseous dichloromethane (DCM). The specific growth rate of the biomass inside the TLPB fitted the Monod model. umax and Ks were 0.013 d−1 and 1.288 g m-3, respectively. The Henry’s Law constant of th ...
DOI:
10.1016/j.bej.2018.12.018

19. Spatiotemporal dynamics of nitrogen dioxide pollution and urban development: Satellite observations over China, 2005–2016

Author:
Wang, Can,   et al.   ; Cui, Yuanzheng; Zhang, Weishi; Bao, Haijun; Cai, Wenjia; Yu, Jian; Streets, David G.;     Show all 7 Authors
Source:
Resources, conservation, and recycling 2019 v.142 pp. 59-68
ISSN:
0921-3449
Subject:
air pollution; cities; industrialization; issues and policy; nitrogen dioxide; satellites; spatial variation; sustainable development; temporal variation; troposphere; urban areas; urbanization; China
Abstract:
... China experienced rapid urbanization and industrialization in recent years, which resulted in large increases of nitrogen dioxide (NO2), particularly in urban areas. We analyze the spatiotemporal variations of the vertical column densities (VCDs) of tropospheric NO2 with the level of urban development across China during the period 2005–2016. Nighttime light (NTL) data are applied as a proxy for u ...
DOI:
10.1016/j.resconrec.2018.11.015

20. Stepwise enzymatic hydrolysis of alkaline oxidation treated sugarcane bagasse for the co-production of functional xylo-oligosaccharides and fermentable sugars

Author:
Wang, Can,   et al.   ; Li, Hailong; Chen, Xindong; Xiong, Lian; Luo, Mutan; Chen, Xuefang; Huang, Chao; Chen, Xinde;     Show all 8 Authors
Source:
Bioresource technology 2019 v.275 pp. 345-351
ISSN:
0960-8524
Subject:
biomass; cellulose; chemical composition; endo-1,4-beta-glucanase; enzymatic hydrolysis; high performance liquid chromatography; industrial applications; lignocellulose; matrix-assisted laser desorption-ionization mass spectrometry; oxidation; sugarcane bagasse; xylan; xylanases; xylooligosaccharides; xylose
Abstract:
... High chemical input is required for enzymatic production of xylo-oligosaccharides (XOS) using xylan extracted from lignocellulosic biomass. In this study, enzymatic hydrolysis of alkaline oxidation (AO) treated sugarcane bagasse (SCB) directly for the production of XOS was conducted. The effect of AO pretreatment on the chemical compositions and hydrolytic properties of SCB was investigated. The A ...
DOI:
10.1016/j.biortech.2018.12.063