Article
Engineering, Environmental
Xiaoyun Xie, Shan Li, Kemin Qi, Zhaowei Wang
Summary: A green and efficient photocatalyst Fe3O4/BiOBr/CQDs was successfully fabricated via photoinduced method for the removal of emerging pollutants, especially CBZ. The enhanced visible light absorption and photogenerated charge transfer efficiency, along with the Z-scheme structure constructed by biomass CQDs, contributes to the high photocatalytic activity of the Fe3O4/BiOBr/CQDs catalyst. This research provides a promising potential for the future application of Fe3O4/BiOBr/CQDs in water pollutant treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Zhonghui Han, Qi Dong, Gang Chen, Hongjun Dong, Rui Zhou
Summary: The development of a high-performance and stable photocatalyst is crucial for the industrialization of eco-friendly hydrogen production through visible light driven water splitting. In this study, a novel core-shell structure polyaniline@Cd-Zn-S photocatalyst with a shell thickness of approximately 3 nm was successfully constructed. The photocatalyst exhibited excellent hydrogen production efficiency and stability, attributed to the presence of Cd-N bonds at the interface, which promoted directional transmission and efficient separation of photo generated charge carriers. The introduction of Cd-N bonds also restricted the photo corrosion effect of the Cd-Zn-S and contributed to the photocatalytic stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Fang Li, Zhaohui Fang, Zhihua Xu, Quanjun Xiang
Summary: This perspective delves into the theoretical criteria and persistence of the driving force for S-scheme electron transfer, addressing the controversies surrounding this process.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Ruyu Yan, Xinyi Liu, Haijie Zhang, Meng Ye, Zhenxing Wang, Jianjian Yi, Binxian Gu, Qingsong Hu
Summary: In this study, carbon quantum dots (CQDs) modified PbBiO2I photocatalyst was synthesized for the first time using an in-situ ionic liquid-induced method. The CQDs decoration effectively addressed the challenges of inefficient near-infrared photon capture, undesirable carrier recombination, and insufficient reaction sites, leading to significantly enhanced photocatalytic performance for organic contaminant degradation.
Article
Chemistry, Physical
Zihan Liu, Mengxia Ji, Junze Zhao, Yi Zhang, Xing Sun, Yifan Shao, Huaming Li, Sheng Yin, Jiexiang Xia
Summary: This study establishes a directional electron transfer channel by decorating N-doped carbon quantum dots (N-CQDs) on the surface of Bi4MoO9 nanoparticles, improving the participation of active electrons in CO2 reduction. The results show that N-CQDs/Bi4MoO9 composites significantly enhance charge separation efficiency and achieve a higher CO yield under Xe light illumination in the presence of pure water.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Reza Behnood, Gholamhossein Sodeifian
Summary: This paper presents a novel carbon quantum dots-based photocatalyst for the degradation of acid blue 113. The S, N co-doped carbon quantum dots embedded onto ZnCo2O4 nanoparticles showed high efficiency in photodegradation, making it a promising alternative for organic pollutant degradation applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Jianjun Zhang, Bicheng Zhu, Liuyang Zhang, Jiaguo Yu
Summary: Femtosecond transient absorption spectroscopy (fs-TAS) is a powerful technique for studying the electron transfer kinetics in photocatalysis. This feature article provides a thorough interpretation of the operating principle of fs-TAS equipment and the fundamentals of fs-TAS spectra. It discusses the applications of fs-TAS in analyzing the dynamics of photogenerated carriers in various types of heterojunction photocatalysts (HPs). The significance of fs-TAS in revealing the ultrafast interfacial electron transfer process in HPs is summarized, and further research directions in the field of photocatalysis are proposed.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Karuppusamy Indira, Arivalagan Pugazhendhi, M. Rajasekar, Nallaiyan Rajendran, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Nguyen Chi Thanh, Kathirvel Brindhadevi
Summary: Niobium ions were successfully incorporated into highly ordered TiO2 nanotube arrays for the first time, showing improved charge separation efficiency and potential as a promising photocatalyst for the degradation of organic pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Analytical
Lakshita Dewangan, Yogyata Chawre, Jyoti Korram, Indrapal Karbhal, Rekha Nagwanshi, Vishal Jain, Manmohan L. Satnami
Summary: Stable carbon quantum dots doped with nitrogen and co-doped with silver or cerium were synthesized and used as fluorescent probes for the detection of mercury and captopril. The fluorescence of the carbon quantum dots was quenched in the presence of Hg2+ ions, while it was recovered in the presence of captopril. The detection limits for Hg2+ and captopril using these carbon quantum dots as fluorescent nanoprobes were found to be low, indicating good sensitivity.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Zhenhua Pan, Vikas Nandal, Yuriy Pihosh, Tomohiro Higashi, Tian Liu, Jason A. Rohr, Kazuhiko Seki, Chiheng Chu, Kazunari Domen, Kenji Katayama
Summary: This study investigates the influence of surface energetics on the efficiency of photoelectrochemical water splitting. The results show that the loading of cocatalysts on different surfaces can greatly enhance charge separation efficiency and improve injection efficiency for water oxidation.
Article
Chemistry, Physical
Zhenhua Pan, Vikas Nandal, Yuriy Pihosh, Tomohiro Higashi, Tian Liu, Jason A. Roehr, Kazuhiko Seki, Chiheng Chu, Kazunari Domen, Kenji Katayama
Summary: This study reveals the influence of surface energetics on the performance of a Mo-doped BiVO4 photoanode, and finds that photodeposition of cocatalysts can significantly enhance charge separation efficiency and injection efficiency for water oxidation.
Article
Engineering, Environmental
Fazal Raziq, Mohammad Z. Rahman, Sharafat Ali, Roshan Ali, Sajjad Ali, Amir Zada, Xiaoqiang Wu, Jorge Gascon, Qingyuan Wang, Liang Qiao
Summary: This article reports a new photocatalyst for CO2 methanation that can utilize extended visible light. The photocatalyst consists of reduced graphene oxide and two different redox active photocatalysts, enabling spatial confinement and differentiation of charge carriers. The results show that the photocatalyst exhibits high methane production rate under wider range of visible light absorption.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Chemistry, Physical
Tong Liu, Zhiyuan Cheng, Tian Shi, Zhiqi Ye, Hao Lin, Dekang Xu, Shenghong Yang, Yueli Zhang
Summary: Spontaneous polarization induced by the crystal structure of ferroelectric semiconductor photo-catalyst enhances charge separation and improves photocatalytic activity. However, the actual efficiency of charge separation is limited by the shielding field due to the complexity of multi-electric field coupling. In this study, a surface reconstruction engineering approach is used to reduce the attenuation of the shielding field and enhance the residual depolarization field. The enhanced depolarization field promotes charge separation and significantly improves the photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
F. F. Alharbi, Sumaira Manzoor, Tauseef Munawar, Mehar Un Nisa, Abdul Ghafoor Abid, Faisal Iqbal, Salma Aman, Muhammad Fahad Ehsan, Muhammad Najam-Ul-Haq, Muhammad Naeem Ashiq
Summary: ZnO-CoTe photocatalyst with S-scheme transfer mechanism was successfully synthesized and demonstrated superior photocatalytic degradation for methyl red and methylene blue dyes under sunlight irradiation.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Kai Wu, Renqian Jiang, Yulong Zhao, Liang Mao, Xiuquan Gu, Xiaoyan Cai, Mingshan Zhu
Summary: This work presents a unique hierarchical hollow heterojunction structure with NiCo2S4 as a non-noble metal co-catalyst encapsulated in ZnIn2S4. The NiCo2S4/ZnIn2S4 composite exhibits excellent photocatalytic activity and significantly improved hydrogen production under visible light irradiation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)