Results 221 to 230 of about 6,083,870 (296)

EPR Evidence for Mechanistic Diversity of Cu(II)/Peroxygen Oxidation Systems by Tracing the Origin of DMPO Spin Adducts.

Environmental Science and Technology, 2022
Electron paramagnetic resonance (EPR) has been extensively used for the identification of free radicals that are generated from advanced oxidation processes (AOPs) so as to establish the reaction mechanism.
Lingli Wang, Yu Fu, Qingchao Li, Zhaohui Wang   +3 more
semanticscholar   +1 more source

The fast redox cycle of Cu(II)–Cu(I)–Cu(II) in the reduction of Cr(VI) by the Cu(II)-thiosulfate system

Chemosphere, 2022
Thiosulfate (S2O32-) is an important ligand to complex metal cations, however, the reactivity of metal-thiosulfate complexes has barely been mentioned. In this study, the reactivity of the Cu(II)-S2O32- system in the reduction of Cr(VI) was investigated. Kinetic results show that the reduction rates of Cr(VI) decrease with increasing pH values from 3.0
Cheng-Feng, Liang, Song-Hai, Wu, Yu-Le, Wang, Zhi, Xu, Yong, Liu, Hai-Tao, Ren, Shao-Yi, Jia, Xu, Han   +7 more
openaire   +2 more sources

Coupling Glucose‐Assisted Cu(I)/Cu(II) Redox with Electrochemical Hydrogen Production

Advances in Materials, 2021
Water electrolysis is a sustainable technology for hydrogen production since this process can utilize the intermittent electricity generated by renewable energy such as solar, wind, and hydro.
Yiqiong Zhang, Bo Zhou, Zengxi Wei, Wang Zhou, Dongdong Wang, Jing Tian, Tehua Wang, Shuangliang Zhao, Jilei Liu, L. Tao, Shuangyin Wang   +10 more
semanticscholar   +1 more source

Cu(II) adsorption on Poly(Lactic Acid) Microplastics: Significance of microbial colonization and degradation

Chemical Engineering Journal, 2022
The current trend towards the use of biodegradable polymers is considered as a sustainable solution to plastic pollution. However, microplastics (MPs) generation due to harsh degradation conditions may impose higher environmental risks on organisms in ...
Ying Sun, Xuejiang Wang, S. Xia, Jianfu Zhao   +3 more
semanticscholar   +1 more source

Adsorption behavior of Cu(II) and Cr(VI) on aged microplastics in antibiotics-heavy metals coexisting system.

Chemosphere, 2021
Recently, the microplastics, as well as the compound pollution of heavy metals and antibiotics, in the aqueous environment have attracted increasing attention, but studies on the behavior of heavy metals on aged microplastics in antibiotics-heavy metals ...
Ziqing Zhou, Yiran Sun, Yayi Wang, Fei Yu, Jie Ma   +4 more
semanticscholar   +1 more source

Characteristics, adsorption behaviors, Cu(II) adsorption mechanisms by cow manure biochar derived at various pyrolysis temperatures.

Bioresource Technology, 2021
With the aims of exploring the effectiveness of Cu(II) adsorption performed by cow manure biochars (CMBCs) for the treatment and recycling of livestock wastes, the physicochemical characteristics and Cu(II) adsorption behaviors of CMBCs at various ...
Peizhen Zhang, Xiaoxiao Zhang, Xiangru Yuan, Ruyue Xie, Lujia Han   +4 more
semanticscholar   +1 more source

Adsorption properties and influencing factors of Cu(II) on polystyrene and polyethylene terephthalate microplastics in seawater.

Science of the Total Environment, 2021
As an emerging contamination in the ocean, microplastics can act as effective vectors of pollutants, the ecological risks caused by the combined pollution of microplastics and other pollutants have attracted growing attention. In this work, Copper (Cu(II)
Xingxing Wang, Ruixin Zhang, Zhao-chun Li, Bo Yan   +3 more
semanticscholar   +1 more source

Self-Enhanced Selective Oxidation of Phosphonate into Phosphate by Cu(II)/H2O2: Performance, Mechanism, and Validation.

Environmental Science and Technology, 2021
Phosphonate is an important category of highly soluble organophosphorus in contaminated waters, and its oxidative transformation into phosphate is usually a prerequisite step to achieve the in-depth removal of the total phosphorus.
Shuhui Sun, C. Shan, Zhichao Yang, Shu Wang, B. Pan   +4 more
semanticscholar   +1 more source

Biochar surface complexation and Ni(II), Cu(II), and Cd(II) adsorption in aqueous solutions depend on feedstock type.

Science of the Total Environment, 2020
Biochar is a promising material for efficient removal of toxic metals from wastewater to meet standards for discharge into surface water. We characterized adsorption behaviour of willow (Salix alba) wood (WW) and cattle manure (CM) and their biochars ...
Siyuan Wang, Jin-Hyeob Kwak, M. S. Islam, M. Naeth, M. Gamal El-Din, Scott X. Chang   +5 more
semanticscholar   +1 more source

Effect of phosphorus-modified biochars on immobilization of Cu (II), Cd (II), and As (V) in paddy soil.

Journal of Hazardous Materials, 2020
Novel phosphorus-modified biochars were produced by pyrolyzing biomass feedstocks (wood, bamboo, cornstalk and rice husk) pre-impregnated with potassium phosphate (K3PO4).
Han Zhang, Jing’ai Shao, Shihong Zhang, Xiong Zhang, Han-ping Chen   +4 more
semanticscholar   +1 more source