Article
Biochemistry & Molecular Biology
Asaad F. Hassan, Gehan A. El-Naggar, Amany G. Braish, Mona M. Abd El-Latif, Walaa A. Shaltout, Maha S. Elsayed
Summary: This study aims to compare the efficiency of photocatalytic degradation and adsorption techniques for removing malachite green (MG) using synthesized solid nanomaterials. The characteristics of the nanomaterials were investigated, and various experimental conditions were tested. The results showed that the nanotitania/calcium alginate composite (TG) had the highest adsorption capacity and achieved a maximum degradation percent of 99.6%. The TG material could be reused, although it exhibited a slight decrease in efficiency.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Zeeshan Haider Jaffari, Ather Abbas, Sze-Mun Lam, Sanghun Park, Kangmin Chon, Eun-Sik Kim, Kyung Hwa Cho
Summary: This study focuses on the potential capability of numerous machine learning models to predict the photocatalytic degradation of malachite green. The CatBoost model outperformed others and showed that the photocatalytic reaction conditions were more important than the material properties.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Aissa Dehane, Slimane Merouani, Oualid Hamdaoui, Magda H. Abdellattif, Byong-Hun Jeon, Yacine Benguerba
Summary: The study demonstrates that increasing the acoustic intensity can enhance the degradation of CCl4 at lower temperatures, with the transformation of CCl4 products affected by both liquid temperature and acoustic intensity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Jianhua Shao, Bin Liu, Yanping Du, Ning Chen, Huimin Zhang, Tao Ding, Yunfeng Li, Wei Chang
Summary: In this study, a series of SnO2/g-C3N4 flowerlike composites were prepared by hydrothermal synthesis and ultrasonic calcination. The composites were characterized using various techniques, and their photocatalytic activity was evaluated for malachite-green dye degradation. The Sn/CN-3 composite, with a mass ratio of 3:1 for SnO2 to g-C3N4, exhibited the highest photocatalytic activity and excellent durability. The enhanced photocatalytic activity was attributed to the synergistic interaction between SnO2 and g-C3N4 and the higher specific surface area of the composites. These findings highlight the potential of SnO2/g-C3N4 flowerlike composites as highly effective photocatalysts, particularly in wastewater treatment.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Biochemistry & Molecular Biology
David A. Collu, Cristina Carucci, Marco Piludu, Drew F. Parsons, Andrea Salis
Summary: Ultra-thin nanosheets of two Aurivillius oxides, BWO and BMO, were synthesized and a new procedure for efficient photocatalytic BMO nanosheets was developed. Both BWO and BMO demonstrated effective degradation of the water pollutant dye MG, with BMO showing higher removal rates and stability. Additionally, adsorption contributed to MG removal differently for the two photocatalysts, indicating distinct degradation mechanisms.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Aissa Dehane, Slimane Merouani, Oualid Hamdaoui
Summary: This study demonstrates that the presence of carbon tetrachloride affects the size distribution of active bubbles and the optimum size for the production of oxidants, especially at different concentrations of CCl4 and ultrasonic parameters.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Baekha Ryu, Kien Tiek Wong, Choe Earn Choong, Jung-Rae Kim, Hyunook Kim, Sang-Hyoun Kim, Byong-Hun Jeon, Yeomin Yoon, Shane A. Snyder, Min Jang
Summary: Despite extensive studies, the synergistic mechanisms between sonolysis and photocatalysis for the removal of persistent organic pollutants (POPs) remain uncertain. This study provides a proof-of-concept for the role of photoexcited electrons in splitting sonolysis-induced hydrogen peroxide into hydroxyl radicals, particularly in the bulk phase. The synergistic degradation of hydrophobic POPs in a sonophotocatalytic system varies compared to hydrophilic POPs, with different degradation patterns observed in the gas-liquid interface and bulk liquid phase.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Polymer Science
Bircan Haspulat Taymaz, Recep Tas, Handan Kamis, Muzaffer Can
Summary: Polyaniline (PANI) and neutral Polyaniline (NPANI) were synthesized in acetonitrile-water mixture and used for photocatalytic degradation of dyes. NPANI showed efficient degradation of dyes under UV light, and factors influencing photocatalytic performance were examined.
Article
Materials Science, Ceramics
Carlos R. Michel, Alma H. Martinez-Preciado
Summary: In this work, the photocatalytic degradation of malachite green (MG) solutions by beta-Ga2O3 was studied. The study revealed that beta-Ga2O3 can effectively degrade MG, and the rate of photodegradation is positively correlated with the amount of beta-Ga2O3 used. Additionally, the role of free hydroxyl radicals and reactive oxygen species in photocatalysis was examined using FTIR and XPS techniques.
CERAMICS INTERNATIONAL
(2022)
Article
Water Resources
Aissa Dehane, Slimane Merouani, Oualid Hamdaoui
Summary: This study investigates the impact of liquid temperature on the size distribution of acoustically active bubbles in the presence of CCl4. It was found that at lower CCl4 concentrations, increasing liquid temperature results in a broader range of active bubbles, while higher concentrations of CCl4 lead to a relatively constant range of active bubbles regardless of liquid temperature.
APPLIED WATER SCIENCE
(2022)
Article
Environmental Sciences
Xinqi Zhang, Kang Wang, Chong He, Yun Lin, Hui Hu, Qingming Huang, Han Yu, Tianhua Zhou, Qilang Lin
Summary: A carbon foam with tunable pore size distribution prepared by a one-pot lava foam process demonstrated higher MG removal efficiency and partition coefficient, with uniform micropore size being beneficial to MG adsorption.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Y. Varun, H. Augustus, N. Panda, I Sreedhar, S. A. Singh
Summary: This study investigates the photocatalytic degradation of malachite green using UV light with TiO2-NiO heterojunctions supported by alumina. The dispersion of TiO2-NiO heterojunctions over alumina improves the photocatalytic activity significantly. The optimum compositions for achieving high catalytic activity are determined for both TiO2-NiO heterojunctions and alumina-supported TiO2-NiO heterojunctions. The results show that both S2 and C2 exhibit significant degradation of malachite green dye.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Shunjiang Huang, Bin Hu, Shuangrun Zhao, Shuai Zhang, Minghua Wang, Qiaojuan Jia, Linghao He, Zhihong Zhang, Miao Du
Summary: A series of Fe-N-C single atom catalysts embedded in the carbon nitride network effectively degrade the organic dye Malachite green, showing enhanced photocatalytic performance. The mesoporous Fe-N-C/CNx hybrids obtained by pyrolysis at 700 degrees Celsius exhibit high removal efficiency towards Malachite green under visible light, with good reproducibility and stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Asaad F. Hassan, Gehan A. El-Naggar, Amany G. Braish, Mona M. Abd El-Latif, Walaa A. Shaltout, Maha S. Elsayed
Summary: This study investigated the effectiveness of two different application methods (photocatalytic degradation and adsorption) for removing malachite green (MG) using solid nanomaterials. Copper ferrite nanoparticles (CF) and copper ferrite/calcium alginate composite (CG) were synthesized as the solid samples. Various physicochemical and morphological properties of the samples were tested. The experimental parameters included sample dose, pH, initial MG concentration, shaking time, ionic strength, UV light power, and temperature. The results showed that CG had a higher adsorption capacity (297.62 mg/g) at 40°C. The adsorption process of MG onto the materials was proven to be spontaneous, endothermic, and advantageous. The CG achieved a maximum MG degradation percentage of 89.9% under specific conditions.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Engineering, Chemical
Nitika Tiwari, Sankha Chakrabortty, Kundan Samal, Sanjib Moulick, Benu Gopal Mohapatra, Sasmita Samanta, P. K. Mohapatra, Kali Sanjay, Jayato Nayak, Shirsendu Banerjee, Suraj K. Tripathy
Summary: The present study focused on the degradation of malachite green (MG) dye using a sustainable and novel low-cost material synthesized from waste fecal sludge. The material, biochar obtained from the fecal sludge, was impregnated with TiO2 and ZnO nanoparticles to enhance its functional properties. Under optimized conditions, the BC-TiO2-ZnO photocatalyst showed a removal efficiency of nearly 98% for MG dye in aqueous solution through a combined effect of adsorption and photocatalysis. The photocatalyst demonstrated good reusability and its degradation efficiency remained stable even after six cycles. The treated water obtained from the process showed no remarkable antibacterial activity against E. coli.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Organic
Andrea P. Sandoval, Marco F. Suarez-Herrera, Juan M. Feliu
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
(2015)
Article
Electrochemistry
Andrea P. Sandoval, Marco F. Suarez-Herrera, Victor Climent, Juan M. Feliu
ELECTROCHEMISTRY COMMUNICATIONS
(2015)
Article
Chemistry, Applied
Andrea P. Sandoval-Rojas, Ana M. Gomez-Marin, Marco F. Suarez-Herrera, Victor Climent, Juan M. Feliu
Article
Electrochemistry
Andrea P. Sandoval-Rojas, Marco F. Suarez-Herrera, Juan M. Feliu
ELECTROCHIMICA ACTA
(2016)
Article
Chemistry, Analytical
Ricardo Barrera-Gutierrez, Ingrid N. Rey-Munoz, Mauro A. Diaz-Moreno, John W. Sandino del Busto, Marco F. Suarez-Herrera
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2017)
Article
Acoustics
Bryan A. Corzo, Marco F. Suarez-Herrera
ULTRASONICS SONOCHEMISTRY
(2018)
Article
Electrochemistry
Andrea P. Sandoval, Marco F. Suarez-Herrera, Juan M. Feliu
ELECTROCHEMISTRY COMMUNICATIONS
(2014)
Article
Chemistry, Physical
Adriana M. Navarro-Suarez, Jonnathan C. Hidalgo-Acosta, Luca Fadini, Juan M. Feliu, Marco F. Suarez-Herrera
JOURNAL OF PHYSICAL CHEMISTRY C
(2011)
Article
Chemistry, Multidisciplinary
Marco F. Suarez-Herrera, Marta Costa-Figueiredo, Juan M. Feliu
Article
Chemistry, Physical
Marco F. Suarez-Herrera, Marta Costa-Figueiredo, Juan M. Feliu
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2012)
Article
Materials Science, Multidisciplinary
Inti Camilo Monge-Romero, Marco Fidel Suarez-Herrera
Article
Chemistry, Multidisciplinary
Andrea P. Sandoval, Juan M. Feliu, Roberto M. Torresi, Marco F. Suarez-Herrera
Article
Chemistry, Analytical
Marco F. Suarez-Herrera, Micheal D. Scanlon
ANALYTICAL CHEMISTRY
(2020)
Article
Electrochemistry
Oscar Javier Moreno-Piza, Marco-Fidel Suarez-Herrera
Summary: This study investigates the redox reactions of elemental sulfur under different conditions and explores the effects of different electrolytes on the performance of lithium-sulfur batteries. The results show that by optimizing the electrolyte and electrode materials, the kinetic behavior of sulfur reactions can be improved, providing a potential solution to the short service life issue of lithium-sulfur batteries.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Oscar J. Moreno, Laura S. Pineda, Carlos E. A. Camargo, Marco Fidel Suarez-Herrera
Summary: This study investigates the sonochemiluminescence reaction of luminol in alkaline medium. The presence of carbon tetrachloride, chloroform, and bromoform is found to increase the reaction rate. Using a mobile phone camera as a detector device, students can study the kinetics of this reaction in a 4-hour laboratory session. This low-cost experimental approach can be used to introduce sonochemistry to undergraduate students and help them analyze complex chemical reactions from the perspective of thermodynamics, chemical kinetics, and reaction mechanism.
JOURNAL OF CHEMICAL EDUCATION
(2023)
