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1. Enhanced removal of high-As(III) from Cl(-I)-diluted SO4(-II)-rich wastewater at pH 2.3 via mixed tooeleite and (Cl(-I)-free) ferric arsenite hydroxychloride formation

Author:
Zidan Yuan; Guoqing Zhang; Xing Wu; Xu Ma; Jinru Lin; Shaofeng Wang; Yongfeng Jia
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 31-41
ISSN:
1001-0742
Subject:
pH,   etc   ; arsenites; cost effectiveness; ferrihydrite; hydrolysis; temperature; wastewater; China;     Show all 8 Subjects
Abstract:
... An advanced cost-saving method of removal of high-As(III) from SO₄(-II)-rich metallurgical wastewater has been developed by diluting the SO₄(-II) content with As(III)-Cl(-I)-rich metallurgical wastewater and then by the direct precipitation of As(III) with Fe(III) at pH 2.3. As(III) removal at various SO₄(-II)/Cl(-I) molar ratios and temperatures was investigated. The results showed that 65.2‒98.2 ...
DOI:
10.1016/j.jes.2021.10.025

2. Unusual uranium biomineralization induced by green algae: Behavior investigation and mechanism probe

Author:
Yanxia Cheng; Ting Zhang; Shunzhang Chen; Feize Li; Renwei Qing; Tu Lan; Yuanyou Yang; Jiali Liao; Ning Liu
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 915-922
ISSN:
1001-0742
Subject:
pH,   etc   ; biomineralization; bioremediation; biosorbents; heavy metals; microalgae; potassium; uranium; wastewater; China;     Show all 10 Subjects
Abstract:
... As a biosorbent, algae are frequently used for the biotreatment or bioremediation of water contaminated by heavy metal or radionuclides. However, it is unclear that whether or not the biomineralization of these metal or radionuclides can be induced by algae in the process of bioremediation and what the mechanism is. In this work, Ankistrodsemus sp. has been used to treat the uranium-contaminated w ...
DOI:
10.1016/j.jes.2022.02.028

3. Preparation of allantoin loaded liposome formulations and application for cosmetic textile production

Author:
Güneş Sayıt; Sakine Tuncay Tanrıverdi; Özgen Özer; Esen Özdoğan
Source:
The journal of the Textile Institute 2025 v.113 no.5 pp. 725-736
ISSN:
1754-2340
Subject:
pH,   etc   ; active ingredients; allantoin; cotton; dialysis; durability; electrical conductivity; encapsulation; films (materials); polyamides;     Show all 10 Subjects
Abstract:
... Liposomal systems are suitable for cosmetotextile applications because this system shows topical effect on the skin. Allantoin is a skin active ingredient that has moisturizing and re-epithelization effect. In this work, allantoin loaded liposome formulations were prepared by using the thin film hydration method for textile application. The characterization of liposome formulation was performed by ...
DOI:
10.1080/00405000.2021.1903197

4. Decomplexation of Cu-1-hydroxyethylidene-1,1-diphosphonic acid by a three-dimensional electrolysis system with activated biochar as particle electrodes

Author:
Xing Wang; Zilong Zhao; Hongjie Wang; Feng Wang; Wenyi Dong
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 630-643
ISSN:
1001-0742
Subject:
pH,   etc   ; adsorption; almond shells; anodes; biochar; electric current; electrochemistry; mineralization; oxidation; quinones; wastewater; China;     Show all 12 Subjects
Abstract:
... The feasibility of decomplexation removal of typical contaminants in electroplating wastewater, complexed Cu(II) with 1-hydroxyethylidene-1,1-diphosphonic acid (Cu-HEDP), was first performed by a three-dimensional electrode reactor with activated biochar as particle electrodes. For the case of 50 mg/L Cu-HEDP, Cu(II) removal (90.7%) and PO₄³⁻ conversion (34.9%) were achieved under the conditions o ...
DOI:
10.1016/j.jes.2021.11.036

5. Understanding the effects of process parameters in the bioscouring of cotton and their interactions on pectate lyase activity by factorial design analysis

Author:
Bruna Lyra Colombi; Quesli Martins; Cintia Kopsch Imme; Diofer Barboza Da Silva; José Alexandre Borges Valle; Jürgen Andreaus; Manuel José Lis Arias; Rita De Cássia Siqueira Curto Valle
Source:
The journal of the Textile Institute 2025 v.113 no.5 pp. 857-868
ISSN:
1754-2340
Subject:
pH,   etc   ; bioscouring; cotton fabric; experimental design; hydrophobicity; industrial applications; nonionic surfactants; pectate lyase; polygalacturonic acid; temperature; wettability;     Show all 11 Subjects
Abstract:
... Pectinases can be used to remove impurities and hydrophobic material from cotton fibers by the degradation of pectic substances. The biochemical characterization and the evaluation of process parameters that influence the enzyme’s activity are mandatory to optimize the industrial application. In the present study, a factorial experimental design was conducted to evaluate the activity of a commerci ...
DOI:
10.1080/00405000.2021.1907987

6. Selective removal of heavy metals by Zr-based MOFs in wastewater: New acid and amino functionalization strategy

Author:
Ping Chen; Yalan Wang; Xiaoqin Zhuang; Haijin Liu; Guoguang Liu; Wenying Lv
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 268-280
ISSN:
1001-0742
Subject:
pH,   etc   ; adsorbents; adsorption; chromium; ecosystems; formic acid; heavy metals; human health; pollution; porosity; surface area; toxicity; wastewater; water quality; China;     Show all 15 Subjects
Abstract:
... Zr-based metal-organic frameworks (MOFs) have been developed in recent years to treat heavy metals, e.g. hexavalent chromium Cr⁶⁺ pollution, which damages the surrounding ecosystem and threaten human health. This kind of MOF is stable and convenient to prepare, but has the disadvantage of low adsorption capacity, limiting its wide application. To this end, a novel formic acid and amino modified MO ...
DOI:
10.1016/j.jes.2021.10.010

7. A β-hairpin peptide with pH-controlled affinity for tumor cells

Author:
Shin-nosuke Nishimura; Kei Nishida; Masaru Tanaka
Source:
Chemical communications 2022 v.58 no.4 pp. 505-508
ISSN:
1364-548X
Subject:
pH,   etc   ; neoplasms; peptides;     Show all 3 Subjects
Abstract:
... Considering that the pH in the tumor microenvironment is dysregulated, we designed a β-hairpin peptide (SSRFEWEFESSᴰPRGDPSSRFEWEFESS). The configuration of the peptide switched from a flexible linear to a rigid loop structure under weakly acidic conditions. The peptide internalized by tumor cells increased significantly under weakly acidic conditions. ...
DOI:
10.1039/d1cc06218b

8. Strategy for rapid recovery of simultaneous sulfide and nitrite removal under high substrate inhibition

Author:
Kaiquan Wang; Mahmood Qaisar; Bilong Chen; Siyi Liu; Yuanyuan Wu; Ziling Zheng; Jing Cai
Source:
Biochemical engineering journal 2022 v.180 pp. 108368
ISSN:
1369-703X
Subject:
pH,   etc   ; nitrites; sulfides;     Show all 3 Subjects
Abstract:
... The paper deals with the strategy for a quick recovery of reactor treating sulfide and nitrite simultaneously under inhibition caused by high substrate concentration. For influent sulfide concentration of 360 mg S/L, respective sulfide and nitrite removal percentages dropped to 74.19% and 14.33% due to inhibition caused by high sulfide and nitrite concentrations. It was found that reduction in the ...
DOI:
10.1016/j.bej.2022.108368

9. The Effect of Fe(II), Fe(III), Al(III), Ca(II) and Mg(II) on Electrocoagulation of As(V)

Author:
Niels Michiel Moed; Young Ku
Source:
Water 2022 v.14 no.2 pp. -
ISSN:
2073-4441
Subject:
pH,   etc   ; electrocoagulation; water;     Show all 3 Subjects
Abstract:
... The interaction between metal chlorides and electrocoagulation was tested. Precipitation of As(V) was found to be optimal at pH 4.9 using FeCl₂, 2.6 for FeCl₃, 3.8 using AlCl₃, 11.6 using CaCl₂ and 8.6 using MgCl₂. As(V) removal through electrocoagulation went down as initial pH (pHᵢ) of the solution increased. Addition of FeCl₂ increased removal of As(V) at all pHᵢ but was not able to achieve ful ...
DOI:
10.3390/w14020215

10. Characteristics and distribution of phosphorus in surface sediments of a shallow lake

Author:
Ziwei Long; Zehua Ji; Yuansheng Pei
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 50-60
ISSN:
1001-0742
Subject:
pH,   etc   ; agricultural pollution; bioavailability; biogeochemical cycles; esters; lakes; nuclear magnetic resonance spectroscopy; organic matter; orthophosphates; principal component analysis; risk; rivers; sediments; China;     Show all 14 Subjects
Abstract:
... Phosphorus (P) in sediments plays an important role in shallow lake ecosystems and has a major effect on the lake environment. The mobility and bioavailability of P primarily depend on the contents of different P forms, which in turn depend on the sedimentary environment. Here, sediment samples from Baiyangdian (BYD) lake were collected and measured by the Standards, Measurements, and Testing proc ...
DOI:
10.1016/j.jes.2021.10.012

11. Insight into the mechanisms of trichloronitromethane formation by vacuum ultraviolet: QSAR model and FTICR-MS analysis

Author:
Xiaojun Chen; Yangtao Wu; Weiqiu Zhang; Lingjun Bu; Shumin Zhu; Da Sheng; Shiqing Zhou; John C. Crittenden
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 215-222
ISSN:
1001-0742
Subject:
pH,   etc   ; bicarbonates; byproducts; chlorides; chlorination; chloropicrin; disinfection; models; nitrates; organic matter; photolysis; quantitative structure-activity relationships; reactive nitrogen species; risk; toxicity; China;     Show all 16 Subjects
Abstract:
... Vacuum ultraviolet (VUV) photolysis is recognized as an environmental-friendly treatment process. Nitrate (NO₃⁻) and natural organic matter (NOM) are widely present in water source. We investigated trichloronitromethane (TCNM) formation during chlorination after VUV photolysis, because TCNM is an unregulated highly toxic disinfection byproduct. In this study: (1) we found reactive nitrogen species ...
DOI:
10.1016/j.jes.2021.11.023

12. A specific esterase and pH logically regulate ESIPT: different kinds of granulocyte sorting

Author:
Kui Wang; Beidou Feng; Ge Wang; Jingqiang Cui; Lin Yang; Kai Jiang; Hua Zhang
Source:
Chemical communications 2022 v.58 no.17 pp. 2894-2897
ISSN:
1364-548X
Subject:
pH,   etc   ; esterases; fluorescence; neutrophils;     Show all 4 Subjects
Abstract:
... Simultaneously detecting naphthol AS-D chloroacetate esterase (NAS-DCE) and pH is an effective way to separate different granulocytes, which is of great significance for the analysis of blood. A series of fluorescent small molecules (HBT-ASDs) were designed, whose ESIPT process could be logically regulated by NAS-DCE and pH. One typical molecule, HBT-ASD-2, emits three kinds of fluorescence output ...
DOI:
10.1039/d1cc07261g

13. Computational modeling and evolutionary implications of biochemical reactions in bacterial microcompartments

Author:
Clair A Huffine; Lucas C Wheeler; Boswell Wing; Jeffrey C Cameron
Source:
Current opinion in microbiology 2022 v.65 pp. 15-23
ISSN:
1369-5274
Subject:
pH,   etc   ; encapsulation; microbiology; toxicity;     Show all 4 Subjects
Abstract:
... Bacterial microcompartments (BMCs) are protein-encapsulated compartments found across at least 23 bacterial phyla. BMCs contain a variety of metabolic processes that share the commonality of toxic or volatile intermediates, oxygen-sensitive enzymes and cofactors, or increased substrate concentration for magnified reaction rates. These compartmentalized reactions have been computationally modeled t ...
DOI:
10.1016/j.mib.2021.10.001

14. Review of pH sensing materials from macro- to nano-scale: Recent developments and examples of seawater applications

Author:
Roberto Avolio; Anita Grozdanov; Maurizio Avella; John Barton; Mariacristina Cocca; Francesca De Falco; Aleksandar T. Dimitrov; Maria Emanuela Errico; Pablo Fanjul-Bolado; Gennaro Gentile; Perica Paunovic; Alberto Ribotti; Paolo Magni
Source:
Critical reviews in environmental science and technology 2022 v.52 no.6 pp. 979-1021
ISSN:
1547-6537
Subject:
pH,   etc   ; environmental science; seawater;     Show all 3 Subjects
Abstract:
... Over the last few decades, a large number of pH sensitive materials with new compositions and structures have been proposed. Solid state sensors based on organic, inorganic and composite materials are actively investigated, with an increasing interest in the performance offered by nano-scale materials. Our review provides a thorough, up-to-date knowledge of a wide range of pH measurement methods a ...
DOI:
10.1080/10643389.2020.1843312

15. Construction of Ag2CO3/BiOBr/CdS ternary composite photocatalyst with improved visible-light photocatalytic activity on tetracycline molecule degradation

Author:
Kaliyappan Perumal; Shajahan Shanavas; Tansir Ahamad; Annamalai Karthigeyan; Padmanabhan Murugakoothan
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 47-60
ISSN:
1001-0742
Subject:
pH,   etc   ; absorption; electron paramagnetic resonance spectroscopy; irradiation; photocatalysis; photocatalysts; photoluminescence; photolysis; pollution control; synergism; tetracycline; transmission electron microscopy; ultraviolet-visible spectroscopy; wastewater; China;     Show all 15 Subjects
Abstract:
... Photocatalytic degradation was considered as a best strategy for the removal of antibiotic drug pollutants from wastewater. The photocatalyst of ABC (Ag₂CO₃/BiOBr/CdS) composite synthesized by hydrothermal and precipitation method. The ABC composite used to investigate the degradation activity of tetracycline (TC) under visible light irradiation. The physicochemical characterization methods (e.g. ...
DOI:
10.1016/j.jes.2021.10.021

16. One-step preparation of MoOx/ZnS/ZnO composite and its excellent performance in piezocatalytic degradation of Rhodamine B under ultrasonic vibration

Author:
Song Zheng; Xiaojing Li; Jiayu Zhang; Junfeng Wang; Chunran Zhao; Xin Hu; Ying Wu; Yiming He
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 1-13
ISSN:
1001-0742
Subject:
pH,   etc   ; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; catalysts; catalytic activity; dielectric spectroscopy; rhodamines; surface area; transmission electron microscopy; ultrasonics; vibration; China;     Show all 13 Subjects
Abstract:
... This paper synthesized a new type of ternary piezoelectric catalyst MoOₓ/ZnS/ZnO (MZZ) by a one-step method. The catalytic degradation of Rhodamine B (RhB) solution (10 μg/g, pH = 7.0) shows that the composite catalyst has excellent piezoelectric catalytic activity under ultrasonic vibration (40 kHz). The piezoelectric degradation rate of the optimal sample reached 0.054 min⁻¹, which was about 2.5 ...
DOI:
10.1016/j.jes.2021.10.028

17. A SERS pH sensor for highly alkaline conditions and its application for pH sensing in aerosol droplets

Author:
Boyu Liu; Yuting Huang; Wenxu Zheng; Dongmei Wang; Meikun Fan
Source:
Analytical methods 2022 v.14 no.19 pp. 1856-1861
ISSN:
1759-9679
Subject:
pH,   etc   ; aerosols; alizarin; droplets; phosphates;     Show all 5 Subjects
Abstract:
... Surface-Enhanced Raman Scattering (SERS) has been widely used in pH sensing. However, SERS sensors capable of stably analysing pH under highly alkaline conditions are still scarce. In this work, a SERS pH sensor employing Alizarin Yellow R as the molecular probe was carefully developed for strong alkaline solutions. The results showed that the probe presented excellent sensing performance in the p ...
DOI:
10.1039/d2ay00387b

18. Differentiated structure of synthetic glycogen-like particle by the combined action of glycogen branching enzymes and amylosucrase

Author:
Daeyeon Lee; Sang-Dong Park; Su-Jin Jun; Jong-Tae Park; Pahn-Shick Chang; Sang-Ho Yoo
Source:
International journal of biological macromolecules 2022 v.195 pp. 152-162
ISSN:
0141-8130
Subject:
pH,   etc   ; glycogen; molecular weight; sucrose;     Show all 4 Subjects
Abstract:
... Glycogen-like particles (GLPs) were built up from sucrose by applying de novo one-pot enzymatic process of amylosucrase (ASase; 6 U·mL⁻¹) and glycogen branching enzymes (GBEs; 0.001 and 0.005 U·mL⁻¹). Due to different chain-length transferring patterns of GBEs, structurally differentiated GLPs were synthesized. Yields of GLPs synthesized at pH 7.0 and 30 °C were improved by increasing the GBE/ASas ...
DOI:
10.1016/j.ijbiomac.2021.11.153

19. EDTA-Na2 as a recoverable draw solute for water extraction in forward osmosis

Author:
Simiao Wu; Ying An; Jilai Lu; Qingmiao Yu; Zhen He
Source:
Environmental research 2022 v.205 pp. 112521
ISSN:
0013-9351
Subject:
pH,   etc   ; microfiltration; osmosis; research; solutes;     Show all 5 Subjects
Abstract:
... Regeneration and reuse of draw solute (DS) is a key challenge in the application of forward osmosis (FO) technologies. Herein, EDTA-Na₂ was studied as a recoverable DS for water extraction by taking advantages of its pH-responsive property. The FO system using EDTA DS achieved a higher water flux of 2.22 ± 0.06 L m⁻² h⁻¹ and a significantly lower reverse salt flux (RSF) of 0.06 ± 0.01 g m⁻² h⁻¹, c ...
DOI:
10.1016/j.envres.2021.112521

20. High-Throughput Microrheology for the Assessment of Protein Gelation Kinetics

Author:
Michael Meleties; Dustin Britton; Priya Katyal; Bonnie Lin; Rhett L. Martineau; Maneesh K. Gupta; Jin Kim Montclare
Source:
Macromolecules 2022 v.55 no.4 pp. 1239-1247
ISSN:
1520-5835
Subject:
pH,   etc   ; gelation; isoelectric point; microscopy;     Show all 4 Subjects
Abstract:
... A high-throughput microrheological assay is employed to assess the gelation kinetics of a coiled-coil protein, Q, across a compositional space with varying ionic strengths and pH values. Two methods of passive microrheology─multiple particle tracking (MPT) and differential dynamic microscopy (DDM)─are used to determine mean-squared displacements of tracer beads embedded in protein solutions with r ...
DOI:
10.1021/acs.macromol.1c02281