Article
Nanoscience & Nanotechnology
Shuai Yue, Lu Chen, Manke Zhang, Zhe Liu, Tao Chen, Mingzheng Xie, Zhen Cao, Weihua Han
Summary: This study used an electrostatic field to inhibit the recombination of photo-carriers in photocatalysts, leading to improved photocatalytic performance of BiVO4 nanowires.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Physical
Changchang Ma, Zhuohong Xie, Won Cheol Seo, Syed Taj Ud Din, Jeongwoo Lee, Youjoong Kim, Hyun Jung, Woochul Yang
Summary: In this study, a novel hybrid photocatalyst CD-BVO/rGH was fabricated by coupling carbon dot decorated BiVO4 with reduced graphene hydrogel. The CD-BVO/rGH photocatalyst showed significantly enhanced photocatalytic efficiency for TCH degradation and CO2 reduction. The enhanced photocatalytic activity of CD-BVO/rGH is attributed to synergistic effects, including better light energy utilization via the upconversion effects of the CDs and the enhanced migration and separation of photoexcited carriers by the 3D network structure of the rGH.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Pavithra Muthukumar Sathya, Sethumathavan Vadivel, Taeho Shin, Harshavardhan Mohan
Summary: Significant progress has been made in the synthesis of sustainable photocatalysts, with the doping of tungsten oxide onto bismuth vanadate resulting in improved photocurrent response. The material exhibits excellent crystallographic properties and shows higher efficiency in CO2 reduction and hydrogen evolution.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Zhiyuan Zhang, Zhihong Zhu
Summary: Through the research on GeP/BiVO4 and GeP/graphene/BiVO4 heterostructures, it is found that they can improve the photocatalytic activity of BiVO4. GeP has a staggered band alignment with BiVO4, and the graphene intercalation can modulate the built-in electric field and charge carrier lifetimes, improving the photocatalytic performance for water splitting.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ruonan Wang, Mingjia Zhang, Shule Zhang, Jianzhong Zheng, Yiqing Zeng, Yan Yang, Jie Ding, Xu Wu, Qin Zhong
Summary: Modulating the core-shell structure to control the surface coverage of CO2 and H2O improves the efficiency of CO2 photocatalytic reduction into CH3OH.
Article
Environmental Sciences
Weiguo Xu, Qiuya Zhang, Kailin Xu, Liwei Qiu, Jiabao Song, Liping Wang
Summary: In this study, BN-BiVO4 composites with visible-light response were prepared and used for the degradation of TCs. Results showed that 4BN-BiVO4 displayed superior photocatalytic performance under visible light irradiation, with 3.6 and 2.3 times higher degradation efficiency for TC and OTC compared to BiVO4. The combination of BN and BiVO4 effectively promoted the separation of photogenerated electrons and holes, enhancing the photocatalytic activity. The dominant reactive species were found to be center dot OH radicals and holes. Based on the experiments and characterization analysis, a possible photocatalytic mechanism for TCs degradation was proposed.
Article
Chemistry, Physical
Dujuan Dai, Yaqiang Wu, Xiaolei Liu, Yayang Xu, Yuhao Guo, Qianqian Zhang, Zeyan Wang, Zhaoke Zheng, Yuanyuan Liu, Hefeng Cheng, Ying Dai, Baibiao Huang, Peng Wang
Summary: By modifying BiVO4 photocatalyst with spatially separated dual cocatalysts Ag and MnOx, the activity for CO2 photoreduction can be effectively improved. The optimal activity of Ag-MnOx-BiVO4 sample is 3.1 times that of the original BiVO4, and the dual cocatalysts can effectively inhibit carrier recombination and promote the reaction.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yaxin Bi, Yanling Yang, Xiao-Lei Shi, Lei Feng, Xiaojiang Hou, Xiaohui Ye, Li Zhang, Guoquan Suo, Jingeng Chen, Zhi-Gang Chen
Summary: The vdW integration can create heterostructures with intimate contact, such as the multidimensional Bi2O3/BiVO4@GO heterostructures described in the study, which show superior high photoactivity towards oxygen evolution. This is attributed to the accelerated charge separation and transfer processes of the vdW heterostructures.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Liang Li, Yong Yang, Boye Zhou, Yong Zhou, Zhigang Zou
Summary: A dimensional matched ultrathin BiVO4/Ti3C2Tx MXene 2D/2D heterosystem was developed through a simple electrostatic self-assembly process, which exhibited increased CO2 uptake capacity compared to bare BiVO4 nanosheets. Furthermore, the well-collaborated 2D/2D heterogeneous structure efficiently enhanced photoexcited charge transfer and separation, leading to a photocatalytic CH3OH production rate 4.1 times higher than pristine BiVO4.
Article
Chemistry, Multidisciplinary
Minzhi Ma, Zeai Huang, Rui Wang, Ruiyang Zhang, Tian Yang, Zhiqiang Rao, Wenjun Fa, Fengying Zhang, Yuehan Cao, Shan Yu, Ying Zhou
Summary: This study proposes a novel strategy for the highly selective photocatalytic conversion of CO2 to methanol by modulating the activation of water to provide ample protons. A carbon nitride-supported cobalt sulfide photocatalyst was synthesized, which effectively promotes proton generation without the formation of strong oxidative free radicals. The optimized photocatalyst achieved a methanol selectivity of 87.2% and a significantly increased methanol production rate compared to the carbon nitride catalyst.
Review
Energy & Fuels
Prince J. J. Sagayaraj, Ashil Augustin, Mariyappan Shanmugam, Brahmari Honnappa, Thillai Sivakumar Natarajan, Karen Wilson, Adam F. Lee, Karthikeyan Sekar
Summary: This review discusses the sustainable production of solar fuels through reduction of molecular CO2 using photocatalysts, emphasizing the importance of this approach for controlling global warming. The unique properties of graphene quantum dots (GQD), such as enhanced solar light absorption and high photocatalytic efficiency, are highlighted. Additionally, the challenges and future outlook of GQD-based photocatalytic systems for solar fuels production are presented.
Article
Chemistry, Physical
Yu-Hung Chen, Jin-Kun Ye, Yao-Jen Chang, Tzu-Wei Liu, Yu-Hao Chuang, Wei-Ren Liu, Shou-Heng Liu, Ying-Chih Pu
Summary: This study demonstrates the growth of CsPbBr3 nanoparticles on semiconducting graphene oxide and conductive few-layer graphene surfaces, showing different interfacial charge transfer behaviors. The rate constant of charge transfer can be modulated by controlling the composition ratio of graphene oxide and few-layer graphene. The relationship between CO2 to CH4 conversion rate and charge transfer rate differs between the graphene oxide-based and few-layer graphene-based nanoheterostructures. This work provides important insights for the design of perovskite-graphene based nanoheterostructures with remarkable performance for solar-driven CO2 conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Xiang Li, Guigan Fang, Qingwen Tian, Ting Wu
Summary: The study successfully developed a novel g-C3N4/BiVO4 through crystal engineering, which exhibits excellent photocatalytic activity. S-scheme electron transfer can enhance catalytic efficiency, while type II electron transfer helps reduce the decomposition of active oxides.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Maira Liaqat, Tahir Iqbal, Iqra Maryam, Khalid Nadeem Riaz, Sumera Afsheen, Muhammad Sohaib, Nabil Al-Zaqri, Ismail Warad, Ahmed S. Al-Fatesh
Summary: In this study, the concentrations of BiVO4, Cu2O, and graphene were carefully monitored during the synthesis of BiVO4/Cu2O/graphene nanocomposites via hydrothermal method. The effects of different concentrations of graphene, time duration, and heat treatment temperature on the synthesized samples were investigated. The optical characteristics, vibrational analysis, morphology, structural analysis, and photocatalytic activity of the samples were examined through various characterizations. The influence of different graphene ratios on the photocatalytic efficiency and stability of the nanocomposite BiVO4/Cu2O was investigated. The stability of the monoclinic phase of BiVO4 was found to be affected by the concentrations of BiVO4 and Cu2O. Nanosheets composites with an average size of 100 nm were observed in SEM micrographs. The sample with the lowest e(-)-h(+) recombination rate exhibited the optimized photocatalytic activity. The optimized sample BiVO4/Cu2O/G5 achieved a high degradation efficiency of 96% for rhodamine-B (RhB) and 98% for tetracycline (TC) under visible light irradiation. The photocatalytic mechanism was studied using scavengers. The stability of the optimal sample was evaluated through recyclability tests. The degradation kinetics of RhB and TC were also examined to explore the photocatalytic performance.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Materials Science, Ceramics
Reda M. Mohamed, Ibraheem A. Mkhalid, Maha Alhaddad, Amal Basaleh, Khalid A. Alzahrani, Adel A. Ismail
Summary: The design and fabrication of Pt nanoparticle-decorated mesoporous ZnO-ZnS heterostructures were described and used effectively for photocatalytic CO2 conversion to yield CH3OH. The significantly enhanced reduction of CO2 was attributed to the synergistic effects of the ZnO-ZnS heterostructure and the incorporation of Pt NPs. The synthesized photocatalyst provides a new transfer route through which carriers can migrate to the outer surface as well as pore channels of the mesoporous ZnO-ZnS, thereby significantly minimizing the transfer distance for carriers and inhibiting photoinduced electron-hole recombination.
CERAMICS INTERNATIONAL
(2021)
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)