Article
Environmental Sciences
Sameena Mehtab, M. G. H. Zaidi, Ankit Singh, Minakshi Pandey, Anjali Mahra, Shubham Sharma, Mohammad Aziz, Diksha Palariya, Barkha Singhal
Summary: The development and characterization of SrTiO3 doped biochar nanohybrid photocatalysts were demonstrated. The biochar nanohybrid was synthesized using an ultrasonic-assisted dispersion technique and characterized through comprehensive analysis of their properties. The results showed that the biochar nanohybrid exhibited reduced optical band gap, enhanced conductivity, and good thermal stability. Furthermore, the fabricated biochar nanohybrid-derived photocatalytic plates showed high photocatalytic efficiency for the degradation of congo red dye.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Jian-Xiang Mao, Ji-Chao Wang, Huiling Gao, Weina Shi, Hai-Peng Jiang, Yuxia Hou, Renlong Li, Wanqing Zhang, Lu Liu
Summary: This study successfully synthesized a series of Step-scheme CuBi2O4/Na doped P25 photocatalysts and demonstrated their efficient performance in hydrogen evolution. The heterojunction structure and S-scheme carrier transfer mechanism were proven to be effective in achieving high photocatalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
Yuewei Yang, Kai Liu, Fengfei Sun, Yanyan Liu, Junfeng Chen
Summary: The carbon nanotubes-silver-modified-titanium dioxide (CNTs-Ag-TiO2, CAT) ternary composite, prepared by a mechanical mixing method, showed excellent treatment efficiency in printing and dyeing wastewater by possessing photocatalytic reaction sites and enhancing visible light utilization. The optimized ratio of CNTs: Ag and the doping amount of CNTs/Ag significantly improved the removal rate of Congo red wastewater within a short period of time.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
C. Maria Magdalane, G. Maria Assuntha Priyadharsini, K. Kaviyarasu, A. Irudaya Jothi, G. Gnanamani Simiyon
Summary: In this research, microwave improved porous CoFe2O4 and TiO2 doped CoFe2O4 nanostructures were designed using L-threonine as a fuel. The synthesized nanomaterials were characterized and investigated for their photocatalytic degradation abilities under visible light. The doping of titania resulted in smaller crystallite sizes for the nanostructures, and there was an observed association between the photocatalytic properties of CoFe2O4 and TiO2 doped CoFe2O4 in a solitary particle.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Sachin Sachin, Biplob Kumar Pramanik, Nahar Singh, Rumbidzai Zizhou, Shadi Houshyar, Ivan Cole, Hong Yin
Summary: ZnO nanoparticles have high efficiency in removing contaminants from water and doping with transitional metals can further enhance their adsorption performance. In this study, ZnO NPs doped with Co, Fe, and Mn were investigated. Co-doped ZnO showed the highest adsorption capacity due to its increased surface area and reduced agglomeration. The adsorption of Congo red on Co-doped ZnO followed the pseudo-second-order model and the Langmuir isotherm. Moreover, Co-doped ZnO was successfully incorporated into an alginate membrane, demonstrating excellent adsorption performance for wastewater purification.
Article
Chemistry, Physical
Mohadeseh Yarahmadi, Hossein Maleki-Ghaleh, Masoud Emami Mehr, Ziba Dargahi, Fatemeh Rasouli, M. Hossein Siadati
Summary: Doping zinc oxide with strontium improved its photocatalytic activity, with the best performance observed at 3% strontium doping. The band gap of the photocatalyst decreased from 3.34 to 3.17 eV, leading to a significant increase in the degradation of methylene blue dye.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Dazhong Sun, Xuemei Zhang, Anqi Shi, Chuye Quan, Shanshan Xiao, Shilei Ji, Zhaobo Zhou, Xingao Li, Fengfeng Chi, Xianghong Niu
Summary: In this study, a single boron atom was introduced into g-C3N5 to improve the limitations of traditional photocatalysts and develop a catalyst suitable for photocatalytic overall water splitting (POWS). By skillfully designing the doping technique, the light absorption range was expanded and sufficient driving force was ensured. Furthermore, the introduction of impurity states effectively suppressed the recombination of photogenerated carriers.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Ali Abbasi, Abdul Rehman, Zeeshan Ali, Muhammad Atif, Zulqurnain Ali, Waqas Khalid
Summary: Phase-pure La-doped bismuth ferrite (La-BFO) nanostructures were successfully synthesised using a wet chemical method. The La-BFO exhibited excellent adsorption performance for anionic Congo red, with an increasing doping concentration of La leading to higher adsorption capacity and removal efficiency. The initial pH of the solution strongly influenced the adsorption capacity.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Environmental Sciences
Kai Liu, Yuewei Yang, Fengfei Sun, Yanyan Liu, Meizhen Tang, Junfeng Chen
Summary: A novel intimately coupled photocatalysis and biodegradation (ICPB) system was developed by coupling Rhodopseudomonas palustris, carbon nanotube - silver modified titanium dioxide photocatalytic composite, and sodium alginate. This system significantly improved the degradation efficiency of Congo red wastewater.
Article
Chemistry, Inorganic & Nuclear
S. Mugundan, P. Praveen, S. Sridhar, S. Prabu, K. Lawrence Mary, Mohd Ubaidullah, Shoyebmohamad F. Shaikh, S. Kanagesan
Summary: Undoped and barium doped TiO2 nanoparticles were synthesized using a sol-gel method and calcined to obtain crystalline particles. Barium doping resulted in increased size of TiO2 particles. The presence of Ti, O, and Ba elements and the presence of anatase and barium titanate phases were confirmed. The specific surface area, porosity, functional groups, bandgap, and photocatalytic activity were studied for both pure and barium doped TiO2 nanoparticles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Rajamani Ranjithkumar, Chi Van Nguyen, Ling Shing Wong, Jaya Ganesh Thiruvengadam Nandagopal, Sinouvassane Djearamane, Govindasamy Palanisamy, Devaraj Bharathi, Jintae Lee
Summary: In this study, chitosan-functionalized bismuth oxychloride/zinc oxide (BiOCl/ZnO) nanocomposite was synthesized by a modified hydrothermal route. The synthesized nanocomposite showed crystalline, agglomerated spherical, and rod-shaped morphology with a size range of 35 to 160 nm. UV-light irradiation demonstrated the high catalytic degradation ability of the synthesized nanocomposite towards Congo red (CR) dye. Moreover, the CS-BiOCl/ZnO photocatalyst showed significant photocatalytic activity even after three consecutive cycles, indicating its potential application for organic pollutant remediation in various industries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Chemical
Shiman Zhai, Ruonan Chen, Jingxin Liu, Jiangyan Xu, Hongmei Jiang
Summary: A porous N-doped magnetic carbon aerogel showed high adsorption capacity for the removal of organic dye Congo red, with well-developed porous morphologies, high specific surface areas, and excellent magnetic properties. Study results indicated that the maximum adsorption capacity of the composite was significantly higher than that of the non-doped aerogel.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Green & Sustainable Science & Technology
Shubam Sudan, Jyotsna Kaushal, Ajay Khajuria
Summary: In this study, novel copper-carbon dots doped magnetic biochar (CDMBC) were synthesized and demonstrated to have good adsorptive ability for the removal of congo red (CR) dye from water. The as-synthesized CDMBC showed efficient removal of the dye in a short time, and adsorption experiments were conducted to evaluate the effect of different parameters. The kinetic and isothermal studies were also evaluated, and the regeneration ability of CDMBC was observed.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Chemistry, Physical
Yuting Li, Daniel Bahamon, Mutasem Sinnokrot, Lourdes F. Vega
Summary: This study presents a computational screening of single and dual transition metal (TM) doping on CdS surfaces to find efficient photocatalysts for hydrogen production. The results show that TM doping can reduce the energy band gap and enhance impurity states. Pt, Rh, and Pd were found to be the best dopants in TM-doped CdS, while Co-Pt, Pd-Pt, and Co-Rh co-doping significantly improved the catalytic performance for hydrogen evolution reaction (HER).
NPJ COMPUTATIONAL MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Tianji Ma, Haiyan Long, Ziheng Shi, Zhaocheng Lang, Mingxing Zhao, Shuoqi Zhang, Chunsheng Lei
Summary: A novel flower-like Zscheme N-BiOBr/CuBi2O4 photocatalyst was successfully prepared by solvothermal method, which showed strong photocatalytic activity under visible light and could degrade 94% of tetracycline in an hour. The substance was highly stable and photocatalytically active. The active species that played a substantial role were identified as superoxide radical (·O2 ) and hydroxyl radical (·OH), and the charge transfer mechanism of the Z-scheme heterojunction was proposed. A new plan for photocatalytic degradation of contaminants in water was presented.