PubAg

Main content area

You searched for: Journal ACS sustainable chemistry Remove constraint Journal: ACS sustainable chemistry Publication Year 2015 Remove constraint Publication Year: 2015 Source 2015 v.3 no.5 Remove constraint Source: 2015 v.3 no.5 Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
Start Over

Search

27  Search Results

« Previous | 1 - 20 of 27 |
Number of results to display per page

Search Results

1. A Recyclable Acidic Ionic Liquid Gel Catalyst for Dehydration: Comparison with an Analogous SILP Catalyst

Author:
Wang, Yue-Ming; Ulrich, Viktor; Donnelly, Gerald F.; Lorenzini, Fabio; Marr, Andrew C.; Marr, Patricia C.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 792-796
ISSN:
2168-0485
Subject:
catalysts; chemical reactions; ethanol; filtration; gels; ionic liquids; silica gel
Abstract:
... An acid-functionalized ionic liquid was entrapped within a silica gel to yield a recyclable liquid phase catalyst for the dehydration of rac-1-phenyl ethanol. Hot filtration tests showed that the activity was within the gel. Comparison with an analogous Supported Ionic Liquid Phase (SILP) system revealed fundamental differences in the properties and behavior of the materials. ...
DOI:
10.1021/sc5008303

2. Brønsted Acidic Polymer Nanotubes with Tunable Wettability toward Efficient Conversion of One-Pot Cellulose to 5-Hydroxymethylfurfural

Author:
Zhang, Yunlei; Pan, Jianming; Shen, Yating; Shi, Weidong; Liu, Chunbo; Yu, Longbao
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 871-879
ISSN:
2168-0485
Subject:
acidity; polymers; polymerization; catalysts; byproducts; cellulose; chlorides; food availability; biorefining; hydrophilicity; hydrophobicity; nanotubes; wettability; feedstocks; ionic liquids; catalytic activity; hydroxymethylfurfural
Abstract:
... Employing renewable and widely available feedstock of cellulose as a raw material for 5-hydroxymethylfurfural (HMF) production opens up the possibility of sustainable biorefinery schemes that do not compete with the food supply. In this work, novel and efficient Brønsted acidic polymer nanotubes were successfully prepared by chemical conjugating grafting −SO₃H groups onto the surface of polydiviny ...
DOI:
10.1021/sc5008412

3. Cellulose Nanoparticles: Structure–Morphology–Rheology Relationships

Author:
Li, Mei-Chun; Wu, Qinglin; Song, Kunlin; Lee, Sunyoung; Qing, Yan; Wu, Yiqiang
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 821-832
ISSN:
2168-0485
Subject:
acid hydrolysis; cellulose; cellulose microfibrils; crystal structure; equations; nanocrystals; nanofibers; nanoparticles; sulfuric acid; transmission electron microscopy; viscoelasticity; viscosity
Abstract:
... The present study aims to investigate the structure–morphology–rheology relationships for cellulose nanoparticles (CNPs), including cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs). CNCs were extracted from never dried CNFs using sulfuric acid with controlled hydrolysis time. The crystalline structure, surface charge, morphology, and rheological behavior of the CNPs were measured and ...
DOI:
10.1021/acssuschemeng.5b00144

4. Coaxial Electrospun Cellulose-Core Fluoropolymer-Shell Fibrous Membrane from Recycled Cigarette Filter as Separator for High Performance Lithium-Ion Battery

Author:
Huang, Fenglin; Xu, Yunfei; Peng, Bin; Su, Yangfen; Jiang, Feng; Hsieh, You-Lo; Wei, Qufu
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 932-940
ISSN:
2168-0485
Subject:
cellulose; cellulose acetate; electrolytes; hydroxyl radicals; lithium batteries; nanofibers; porosity; separators; tensile strength; thermal stability; wastes
Abstract:
... This paper reports an eco-friendly approach for extracting cellulose acetate (CA) from waste cigarette filter to construct a cellulose-based membrane separator for a high-performance lithium-ion battery. A cellulose/poly(vinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofiber membrane was prepared by coaxial electrospinning of a cellulose acetate core and PVDF-HFP shell, then hydrolyzed by ...
DOI:
10.1021/acssuschemeng.5b00032

5. Cocktail Chromatography: Enabling the Migration of HPLC to Nonlaboratory Environments

Author:
Welch, Christopher J.; Nowak, Timothy; Joyce, Leo A.; Regalado, Erik L.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 1000-1009
ISSN:
2168-0485
Subject:
additives; alcohols; ammonia; biomedical research; high performance liquid chromatography; instrumentation; mass spectrometry; rum; solvents; supermarkets; vinegars; vodka; wastes
Abstract:
... HPLC and HPLC-MS are powerful and wide ranging analytical tools employed in every aspect of modern chemical and biomedical research. The use of these tools is currently restricted to formal laboratory environments, partly due to cost and complexity but also owing to the special handling requirements for the solvents consumed and waste generated by these instruments. Ongoing innovations targeting t ...
DOI:
10.1021/acssuschemeng.5b00133

6. Copolyesters from Soybean Oil for Use as Resorbable Biomaterials

Author:
Kolanthai, Elayaraja; Sarkar, Kishor; Meka, Sai Rama Krishna; Madras, Giridhar; Chatterjee, Kaushik
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 880-891
ISSN:
2168-0485
Subject:
biocompatible materials; biodegradability; bone formation; bones; citric acid; crosslinking; differential scanning calorimetry; dyes; humans; hydrophobicity; mannitol; mechanical properties; melting; models; polyesters; renewable resources; soybean oil; stem cells; temperature; tissue engineering; wettability
Abstract:
... A family of soybean oil (SO) based biodegradable cross-linked copolyesters sourced from renewable resources was developed for use as resorbable biomaterials. The polyesters were prepared by a melt condensation of epoxidized soybean oil polyol and sebacic acid with citric acid (CA) as a cross-linker. d-Mannitol (M) was added as an additional reactant to improve mechanical properties. Differential s ...
DOI:
10.1021/acssuschemeng.5b00001

7. Efficient Nanostructured Biophotovoltaic Cell Based on Bacteriorhodopsin as Biophotosensitizer

Author:
Mohammadpour, Raheleh; Janfaza, Sajad
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 809-813
ISSN:
2168-0485
Subject:
adsorption; energy conversion; lighting; nanofibers; nanoparticles; photovoltaic cells; solar radiation; titanium dioxide
Abstract:
... Here, we report on utilizing a photoactive protein, bacteriorhodopsin (bR), as a light harvester in combination with TiO₂ nanoparticles in biosensitized solar cell application. Experiments have been conducted to investigate the capability of surface adsorption of bR on nanoparticular TiO₂photoanodes. Different pretreatment processes have been done to modify the interface of TiO₂ nanoparticles and ...
DOI:
10.1021/sc500617w

8. Enhancing Hemicellulose Recovery and the Enzymatic Hydrolysis of Cellulose by Adding Lignosulfonates during the Two-Stage Steam Pretreatment of Poplar

Author:
Chandra, Richard P.; Gourlay, Keith; Kim, Chang-Soo; Saddler, Jack N.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 986-991
ISSN:
2168-0485
Subject:
Betula; adsorption; catalysts; cellulose; enzymatic hydrolysis; hydrolysis; lignosulfonates; solubilization; steam; sulfur dioxide; sulfuric acid; surfactants; washing; xylan; xylose
Abstract:
... To enhance overall sugar recovery, poplar was steam pretreated in two stages. First, under mild pretreatment conditions (160 °C, 15 min) using various acid catalysts (H₂SO₄, SO₂, oxalic, citric) to assess optimum hemicellulose recovery, followed by an uncatalyzed, second pretreatment (200 °C, 5 min), to facilitate enzymatic hydrolysis of the cellulose. The first stage solubilized and recovered abo ...
DOI:
10.1021/acssuschemeng.5b00124

9. Facile Fabrication of Reduced Graphene Oxide/Polypyrrole Composite Hydrogels with Excellent Electrochemical Performance and Compression Capacity

Author:
Ni, Tao; Xu, Liang; Sun, Yupeng; Yao, Wei; Dai, Tingyang; Lu, Yun
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 862-870
ISSN:
2168-0485
Subject:
ambient temperature; capacitance; crosslinking; electrochemistry; energy; graphene; graphene oxide; hydrogels; oxidation; polymerization; polymers
Abstract:
... We report a facile method to fabricate reduced graphene oxide/polypyrrole hydrogels (rGO/PPy) simply by combining the self-assembly process at room temperature with oxidation polymerization at elevated temperature. The as-prepared composite hydrogels possess a cross-linked 3D hierarchical porous structure and show a compression-tolerant property and a high specific capacitance of 473 F g–¹ at 1 A ...
DOI:
10.1021/sc500828t

10. Green Synthesis of Carbon- and Silver-Modified Hierarchical ZnO with Excellent Solar Light Driven Photocatalytic Performance

Author:
Shen, Zhangfeng; Liang, Ping; Wang, Shaobin; Liu, Lihong; Liu, Shaomin
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 1010-1016
ISSN:
2168-0485
Subject:
biomimetics; bioprocessing; carbon; environmental impact; methylene blue; molds (fungi); nanoflowers; nanosilver; pH; photocatalysis; photolysis; silver; solar radiation; yeasts; zinc; zinc oxide
Abstract:
... Superstructured ZnO has been the focus of intensive study due to its promising diverse applications. Here, we demonstrate a facile synthesis of hierarchical ZnO particles hybridized with carbon and silver via a simplified bioprocess using yeast mold broth. Better than traditional microbial and biomimetic methods, our microbe-free strategy offers superior ease-of-preparation with minimal negative e ...
DOI:
10.1021/acssuschemeng.5b00147

11. Halide-Free Synthesis and Tribological Performance of Oil-Miscible Ammonium and Phosphonium-Based Ionic Liquids

Author:
Westerholt, A.; Weschta, M.; Bösmann, A.; Tremmel, S.; Korth, Y.; Wolf, M.; Schlücker, E.; Wehrum, N.; Lennert, A.; Uerdingen, M.; Holweger, W.; Wartzack, S.; Wasserscheid, P.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 797-808
ISSN:
2168-0485
Subject:
X-ray photoelectron spectroscopy; additives; ammonium; corrosion; energy conservation; engineering; green chemistry; ionic liquids; lubricants; oils; steel
Abstract:
... Due to their low vapor pressures, nonflammability, high thermal stabilities, and excellent tribological properties ionic liquids (ILs) are highly attractive lubricant base oils and additives. However, for practical applications of ILs in lubrication, two requirements are often limiting, the required miscibility with standard mineral oils (≥5 wt %) and the complete absence of corrosive halide ions ...
DOI:
10.1021/sc500517n

12. Hydrocarbon Liquid Production via Catalytic Hydroprocessing of Phenolic Oils Fractionated from Fast Pyrolysis of Red Oak and Corn Stover

Author:
Elliott, Douglas C.; Wang, Huamin; Rover, Marjorie; Whitmer, Lysle; Smith, Ryan; Brown, Robert
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 892-902
ISSN:
2168-0485
Subject:
biofuels; biomass; carbon; catalysts; corn stover; feedstocks; filtration; fouling; gasoline; oils; particulates; pyrolysis; temperature; vapors; washing
Abstract:
... Phenolic oils were produced from fast pyrolysis of two different biomass feedstocks, red oak and corn stover, and evaluated in hydroprocessing tests for production of liquid hydrocarbon products. The phenolic oils were produced with a bio-oil fractionating process in combination with a simple water wash of the heavy ends from the fractionating process. Phenolic oils derived from the pyrolysis of r ...
DOI:
10.1021/acssuschemeng.5b00015

13. Light-Assisted Preparation of a ZnO/CdS Nanocomposite for Enhanced Photocatalytic H2 Evolution: An Insight into Importance of in Situ Generated ZnS

Author:
Zhao, Hui; Dong, Yuming; Jiang, Pingping; Wang, Guangli; Miao, Hongyan; Wu, Ruixian; Kong, Linggang; Zhang, Jingjing; Zhang, Chi
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 969-977
ISSN:
2168-0485
Subject:
adsorption; electrons; hydrogen; hydrogen production; irradiation; nanocomposites; photocatalysis; photocatalysts; solar radiation; zinc oxide; zinc sulfide
Abstract:
... In our work, ZnO/CdS hybrid photocatalysts were prepared by a simple and reproducible photodeposition method and the content of deposited CdS can be varied by irradiation time. The ZnO/CdS photocatalysts showed good photocatalytic H₂ evolution activities in aqueous Na₂S + Na₂SO₃ solution. When the content of CdS loading increased to 22.91% after an irradiation time of 120 min (ZnO/CdS-T120), the h ...
DOI:
10.1021/acssuschemeng.5b00102

14. NbSe2 Nanosheet Supported PbBiO2Br as a High Performance Photocatalyst for the Visible Light-driven Asymmetric Alkylation of Aldehyde

Author:
Li, Xiaojie; Wang, Jun; Xu, Danyun; Sun, Zhen; Zhao, Qingshan; Peng, Wenchao; Li, Yang; Zhang, Guoliang; Zhang, Fengbao; Fan, Xiaobin
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 1017-1022
ISSN:
2168-0485
Subject:
aldehydes; alkylation; catalytic activity; nanocomposites; nanoparticles; nanosheets; photocatalysts; redox reactions; semiconductors
Abstract:
... Visible light photoredox catalysis has been demonstrated to be a promising and green strategy for organic synthesis. In this study, a nanocomposite of PbBiO₂Br nanoparticles and NbSe₂ nanosheet was prepared as a high performance photocatalyst for the visible light-driven asymmetric alkylation of aldehyde. It was found that the introduction of a small amount of NbSe₂ (0.5 wt %) to the PbBiO₂Br semi ...
DOI:
10.1021/acssuschemeng.5b00182

15. Phase Composition of Aqueous Urea–Ammonium Nitrate (UAN)–Zinc Nitrate Solutions for Sustainable Reuse of Zinc Containing Industrial Pigment Waste

Author:
Baltrusaitis, J.; Sviklas, A. M.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 950-958
ISSN:
2168-0485
Subject:
ammonium nitrate; chemical composition; industrial wastes; liquid fertilizers; nitric acid; nitrogen fertilizers; solubility; temperature; thermal analysis; urea; zinc
Abstract:
... Sustainable metal recovery from waste is of utmost importance. Zn is a micronutrient that is abundant in many industrial wastes. In this work, the process of converting industrial white pigment waste into a Zn micronutrient containing nitrogen fertilizers was developed utilizing an HNO₃ extraction method. For this purpose, solubility diagrams, polytherms, were constructed of the ternary CO(NH₂)₂–Z ...
DOI:
10.1021/acssuschemeng.5b00067

16. Pretreatment of Macadamia Nut Shells with Ionic Liquids Facilitates Both Mechanical Cracking and Enzymatic Hydrolysis

Author:
Teh, Wuan Xin; Hossain, Md. Mokarrom; To, Trang Quynh; Aldous, Leigh
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 992-999
ISSN:
2168-0485
Subject:
Macadamia integrifolia; acetates; cracking; endo-1,4-beta-glucanase; energy; enzymatic hydrolysis; glucose; hulls; ionic liquids; macadamia nuts; solubility
Abstract:
... The effect of ionic liquids upon the mechanical and (bio)chemical integrity of macadamia nut shells (from Macadamia integrifolia) has been investigated. Whole macadamia nuts-in-shell are notoriously difficult to crack, and the Australian macadamia nut shells used in this study required 2240 ± 430 N of force to crack. Ionic liquids were screened for their solubility values, with 1-ethyl-3-methylimi ...
DOI:
10.1021/acssuschemeng.5b00126

17. Role of Hydrochar Properties on the Porosity of Hydrochar-based Porous Carbon for Their Sustainable Application

Author:
Zhu, Xiangdong; Liu, Yuchen; Qian, Feng; Zhou, Chao; Zhang, Shicheng; Chen, Jianmin
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 833-840
ISSN:
2168-0485
Subject:
biomass; carbon; elemental composition; hydrochars; hydrothermal carbonization; lignocellulose; porosity; surface area; temperature
Abstract:
... In recent years, chemical activation of hydrochar (a solid material from hydrothermal carbonization (HTC) of lignocellulosic biomass) has been shown to be effective in producing advanced porous materials. However, the linkage between the properties of hydrochar and the porosity of hydrochar-based porous carbon (a material from the chemical activation of hydrochar) has not yet been clearly explored ...
DOI:
10.1021/acssuschemeng.5b00153

18. Sea-Urchin-like Cobalt Oxide Grown on Nickel Foam as a Carbon-Free Electrode for Lithium–Oxygen Batteries

Author:
Lin, Xiujing; Shang, Yesheng; Li, Liangyu; Yu, Aishui
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 903-908
ISSN:
2168-0485
Subject:
batteries; carbon; cobalt oxide; corrosion; electrodes; electrolytes; electron transfer; energy density; foams; nanorods; nickel; oxygen
Abstract:
... Rechargeable lithium–oxygen batteries have attracted extensive attention for their high energy density. However, the carbon corrosion, the undesired electrolyte decomposition catalyzed by carbon, and the irreversible reaction between carbon and the discharge product Li₂O₂ limit their performance. Herein we show the synthesis of sea-urchin-like cobalt oxide growing directly on nickel foam by a faci ...
DOI:
10.1021/acssuschemeng.5b00012

19. Self-Organized TiO2/CoO Nanotubes as Potential Anode Materials for Lithium Ion Batteries

Author:
Madian, M.; Giebeler, L.; Klose, M.; Jaumann, T.; Uhlemann, M.; Gebert, A.; Oswald, S.; Ismail, N.; Eychmüller, A.; Eckert, J.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 909-919
ISSN:
2168-0485
Subject:
X-ray photoelectron spectroscopy; alloys; anodes; crystal structure; electrochemistry; electrolytes; lithium; lithium batteries; nanotubes; oxidation; surface area; titanium dioxide
Abstract:
... Electrode material characteristics need to be improved urgently to fulfill the requirements for high performance lithium ion batteries. Herein, we report the use of the two-phase alloy Ti₈₀Co₂₀ for the growth of Ti–Co–O nanotubes employing an anodic oxidation process in a formamide-based electrolyte containing NH₄F. The surface morphology and the current density for the initial nanotube formation ...
DOI:
10.1021/acssuschemeng.5b00026

20. Soybean Lecithin as a Dispersant for Crude Oil Spills

Author:
Nyankson, Emmanuel; DeCuir, Matthew J.; Gupta, Ram B.
Source:
ACS sustainable chemistry 2015 v.3 no.5 pp. 920-931
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; United States Environmental Protection Agency; aquatic organisms; biodegradability; emulsifying properties; emulsions; ethanol; food industry; oil spills; oils; petroleum; phosphatidylcholines; polysorbates; propylene glycol; salinity; solubilization; soybeans; toxicity; Texas
Abstract:
... The toxicity of oil spill dispersants to marine organisms has necessitated the search for alternative dispersant formulations that are environmentally benign. Soybean lecithin, a well-known surface active agent in the food industry, is effective at stabilizing oil-in-water emulsions. In addition to its excellent emulsification properties, it is biodegradable, less toxic than the traditional chemic ...
DOI:
10.1021/acssuschemeng.5b00027