Article
Environmental Sciences
C. C. de Souza, E. D. Oliveira, S. Silva, I. F. M. de Souza, I. M. M. de Melo, C. R. Moreira, E. F. da Silva, M. A. de Oliveira, A. C. S. Bezerra, A. R. T. Machado
Summary: The surface of activated carbon was modified with copper sulfate salt to remove reduced sulfur compounds from water. The impregnated material showed an increase in l-cysteine removal and contained copper in the forms of copper oxide and metallic copper, making it a promising adsorbent for compounds with reduced sulfur.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Sinang Choi, Sang-Sup Lee
Summary: Activated carbon injection upstream of a particulate matter control device is commonly used to control mercury in coal-fired flue gas. Nitrogen oxides and hydrogen chloride can enhance the efficiency of activated carbon for mercury removal. Among different chloride compounds impregnated on activated carbon, copper chloride impregnated activated carbon showed the highest mercury adsorption efficiency under specific conditions.
Article
Energy & Fuels
John H. Jacobs, Nancy Chou, Kevin L. Lesage, Ye Xiao, Josephine M. Hill, Robert A. Marriott
Summary: Activated carbons have been found to possess good selective adsorption capability for removing sulfur dioxide from flue gas, especially in the presence of water. The activated carbons prepared with KOH and NaOH showcased the highest SO2 adsorption capacity under wet conditions. Additionally, the adsorption performance of all activated carbons remained unchanged after multicomponent adsorption of wet SO2.
Article
Environmental Sciences
Athanasia K. Tolkou, Miroslava Vaclavikova, George P. Gallios
Summary: This research focuses on removing Cr(VI) from water using modified activated carbon with a combination of iron and manganese or copper oxides. The experimental results showed that NFM material had the highest Cr(VI) removal rate (99.7%) at pH 3 with a 3-hour contact time. The maximum adsorption capacity for NFM was found to be 44.42 mg/g using the Langmuir model, and the structure of the modified adsorbents materials was studied using BET and SEM characterization techniques.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Chemistry, Multidisciplinary
Zobia Razzaq, Muhammad Hamayun, Shahzad Murtaza, Samia Kausar, Ataf Ali Altaf, Rizwan Ullah Khan, Tehzeen Javaid
Summary: This study investigates the use of activated carbons from virgin banana peduncle (ZR1) and iron-impregnated banana peduncle (ZR2) as adsorbents for the removal of As(V) and Cr(VI) ions from aqueous solutions. The adsorbents were characterized and the effects of various factors on metal ion adsorption were studied. The results showed that ZR1 and ZR2 had good adsorption capacities for both As(V) and Cr(VI) ions. Kinetic and thermodynamic parameters demonstrated the feasibility of the adsorption process, making ZR1 and ZR2 promising and cost-effective biosorbents for removing As(V) and Cr(VI).
Article
Environmental Sciences
M. B. Mane, V. M. Bhandari
Summary: Metal-modified spherical activated carbons are effective for removing bacteria and sulfur from water and fuel, with the copper-modified carbon showing high efficacy in water disinfection. The zeta potential plays a significant role in disinfection efficacy, with the materials showing potential for environmental pollution control applications.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Review
Environmental Sciences
Nada Abuelnoor, Ahmed AlHajaj, Maryam Khaleel, Lourdes F. Vega, Mohammad R. M. Abu-Zahra
Summary: In an effort to reduce excessive anthropogenic CO2 emissions, various CO2 capture technologies have been developed, with activated carbon being a promising option. Derived from agricultural waste and biomass, activated carbon can be enhanced for CO2 capture through different preparation methods and functionalization, making it suitable for industrial applications like wastewater treatment.
Article
Engineering, Environmental
Ana S. Mestre, Rui M. C. Viegas, Elsa Mesquita, Maria Joao Rosa, Ana P. Carvalho
Summary: Novel powdered activated carbons derived from pine cones and pine nut shells showed excellent performance in the competitive adsorption of pharmaceutical compounds and dissolved organic matter. Direct site competition was found to have a detrimental effect on the removal of pharmaceutical compounds, while indirect competition mainly occurred in mixed liquor. Model predictions suggested that dosing with the activated carbons could significantly enhance the removal of carbamazepine and diclofenac in secondary effluent.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Sergio Acevedo, Liliana Giraldo, Juan C. Moreno-Pirajan
Summary: This study examines the adsorption kinetics of activated carbon (AC) adsorbent materials produced from a by-product of African palm processing. The textural characteristics of the adsorbent solids were determined through N-2 physisorption, revealing BET areas between 721 and 1334 m(2)g(-1) and micropore volumes between 0.33 and 0.55 cm(3)g(-1). FTIR was used for chemical characterization, and CO2 adsorption was measured, showing values between 175 and 274 mg·g(-1). The kinetic study suggests that the intraparticle diffusion model best describes the physisorption process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Malgorzata Wisniewska, Natalia Pawlak, Dariusz Sternik, Robert Pietrzak, Piotr Nowicki
Summary: This research investigates the adsorption of organic and inorganic pollutants on carbonaceous adsorbents prepared from expired or broken food products. The activation process was conducted using potassium carbonate and orthophosphoric acid as activating agents. The activated carbons were characterized and their suitability as adsorbents for methylene blue and iodine removal from aqueous solutions was evaluated. The materials activated with H3PO4 showed higher effectiveness in both pollutant adsorptions. The Langmuir isotherm model provided a better fit for the experimental adsorption data for all carbonaceous materials compared to the Freundlich model.
Article
Energy & Fuels
Jae-Hoon Shin, Yu-Yeon Park, Sang-Hyun Moon, Ji-Hwan Kim, Jae-Sung Jang, Sung-Beom Kim, Seong-Nam Lee, Kyung-Won Park
Summary: A novel approach using a carbon-based material as an interlayer in lithium-sulfur batteries (LSBs) has been proposed to enhance their performance. By suppressing the crossover of lithium polysulfides to the anode, the reutilization of the sulfur cathode is increased. Activated carbons (ACs) were prepared using coffee waste and potassium hydroxide as an activation agent at different reaction temperatures, showing improved surface areas and pore volumes. The AC sample prepared at 800 degrees C exhibited enhanced capacity and cycling performance as a functional separator for LSB while suppressing the shuttle effect of lithium polysulfides.
Article
Chemistry, Physical
Qiuyun Pu, Jirui Zou, Junya Wang, Shijian Lu, Ping Ning, Liang Huang, Qiang Wang
Summary: In this study, biomass wastes were used to prepare activated carbons with high micropore percentage for CO2 capture. The AC derived from walnut shells showed superior CO2 uptake, and the micropore percentage was found to have a significant influence on the CO2 capture performance of AC.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Bomin Fu, Corinne Ferronato, Ludovic Fine, Frederic Meunier, Jose Luis Valverde, Victor R. Ferro Fernandez, Anne Giroir-Fendler, Jean-Marc Chovelon
Summary: The study investigated the adsorption characteristics of three activated carbons derived from wood on Pemetrexed (PEME) and found that different activated carbons exhibited varying adsorption behaviors in the experiments. The results also indicated that the surface functional groups of the activated carbons play a role in influencing the adsorption of the adsorbate.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Runzhen Lai, Jun Hu, Yahui Sun, Ping Lu
Summary: Activated carbons (AC) were prepared from lignocellulosic biomass by H3PO4 activation. AC from carbohydrates, especially xylan, showed higher-developed porous structure and more active functional groups. AC-X displayed the highest adsorption capacity for methylene blue and other heavy metals.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Agricultural Engineering
Jaroslaw Serafin, Mohammed Ouzzine, Orlando F. Cruz Junior, Joanna Srenscek-Nazzal
Summary: Low-cost carbonaceous adsorbents with microporous structures and moderate specific surface area were prepared from different amazonian nutshells for CO2 storage. The micropore structure of the activated carbons significantly impacts CO2 adsorption capacity, with mesoporosity contributing to higher capture at high pressure.
BIOMASS & BIOENERGY
(2021)
Article
Environmental Sciences
Mark Daniel G. de Luna, Sergi Garcia-Segura, Chinee H. Mercado, Yao-Tung Lin, Ming-Chun Lu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
M. D. G. de Luna, L. H. S. Paulino, C. M. Futalan, M. C. Lu
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Environmental
Arianne S. Sioson, Angelo Earvin Sy Choi, Mark Daniel G. de Luna, Yao-Hui Huang, Ming-Chun Lu
CHEMICAL ENGINEERING JOURNAL
(2020)
Review
Environmental Sciences
Carl Francis Z. Lacson, Ming-Chun Lu, Yao-Hui Huang
Article
Environmental Sciences
Mark Daniel G. de Luna, Anamie Rabongue, Sergi Garcia-Segura, Ming-Chun Lu
Summary: Cartap, a widely-used thiocarbamate pesticide for protecting rice crops, poses significant environmental and health risks in effluents due to its acute toxicity. The fluidized-bed Fenton process showed efficient removal of Cartap with improved reduction in chemical oxygen demand and total organic carbon. However, the presence of phosphate ions in natural water matrices can have a detrimental effect on Fenton oxidation, inhibiting the production of oxidants for contaminant degradation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Environmental Sciences
Khyle Glainmer N. Quiton, Ming-Chun Lu, Yao-Hui Huang
Summary: This study investigates the application of bimetallic catalysts in water and wastewater treatment, finding that Fe-based bimetallic catalysts are one of the most efficient heterogeneous catalysts for the treatment of organic and inorganic contamination. The roles and performances of bimetallic catalysts in the removal of environmental contaminants vary.
Article
Green & Sustainable Science & Technology
Carl Francis Z. Lacson, Ming-Chun Lu, Yao-Hui Huang
Summary: This study discusses the toxicity of fluoride in the environment, related defluoridation technologies, operational costs and effectiveness. It is noted that adsorption is currently the main technique for defluoridation, but requires further development. Additionally, industrial effluents may have high fluoride concentrations, traditional treatment methods are ineffective and hybrid treatments are needed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Reyson M. Feliciano, Benny Marie B. Ensano, Mark Daniel G. de Luna, Cybelle M. Futalan, Ralf Ruffel M. Abarca, Ming-Chun Lu
Summary: Desulfurization of liquid fuels is essential to reduce the emission of sulfur oxides and particulates during fuel combustion. In this study, the desorption mechanism of sulfur from neutral activated alumina saturated with dibenzothiophene sulfone was investigated, with batch experiments showing that acetone had superior desorption efficiency compared to other eluents. The desorption kinetics followed a pseudo-second-order equation with chemisorption as the rate-determining step, and thermodynamics study revealed the spontaneous and endothermic nature of sulfur desorption using acetone as eluent. Overall, neutral activated alumina was proven to be an efficient and reusable adsorbent for sulfur compound removal from liquid fossil fuels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Carl Francis Zulueta Lacson, Ming-Chun Lu, Yao-Hui Huang
Summary: Excessive industrial advances have led to an increase in fluoride effluents, beyond the capacity of the environment, requiring the use of technologies such as chemical precipitation to reduce pollution.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Nonglak Boonrattanakij, Sirikorn Yomchinda, Fang-Jia Lin, Luzvisminda M. Bellotindos, Ming-Chun Lu
Summary: This study examined the improvement of air quality in a fitness center's exercise room under normal operating conditions, focusing on bacterial and fungal contamination. Chlorine dioxide and weak acid hypochlorous water aerosols were found to be more effective in removing bacteria and fungi than water scrubbing, with a 15-minute contact time sufficient to meet air quality standards. User density and carbon dioxide levels had a significant impact on the disinfection performance of bacteria and fungi, while temperature specifically affected fungi disinfection.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Nathaniel E. Quimada, Mark Daniel G. De Luna, Anabella C. Vilando, Ming-Chun Lu
Summary: This study investigates the removal and recovery of copper and nickel ions from synthetic PCB wastewater using a fluidized-bed homogeneous granulation process (FBHGP). The research found that high removal and granulation efficiency can be achieved under different operating conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Green & Sustainable Science & Technology
Jui-Yen Lin, Erica A. Garcia, Florencio C. Ballesteros, Sergi Garcia-Segura, Ming-Chun Lu
Summary: Carbon capture, utilization, and storage (CCUS) technologies are being developed to mitigate CO2 emissions and address global warming and climate change. Chemical precipitation plays a crucial role in enhancing the performance, energy-efficiency, and profitability of CCUS. Controlled precipitation helps reduce energy demand, stabilize CO2 as solid carbonates, and manipulate the morphology of calcium carbonate for better utilization and environmental benefits.
SUSTAINABLE ENVIRONMENT RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Corazon Alaba Virtudazo-Ligaray, Mark Daniel G. de Luna, Angelo Earvin Sy Choi, Ming Chun Lu
Summary: Desulfurization technology is important for removing sulfur from fuel, and the CeO2-WOx-TiO2 catalyst synthesized in this study showed promising results in oxidative desulfurization of fuel oil at lower temperature and pressure.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Biology
Ming-Chun Lu, Po-Lin Chen, Da-Ji Huang, Chih-Kuo Liang, Ching-Shan Hsu, Wei-Ting Liu
Summary: The study in a hospital infectious disease ward in Taiwan found that chlorine dioxide had a stronger disinfection effect compared to weak acid hypochlorous water. Using chlorine dioxide twice daily was the most effective means of satisfying the Taiwan EPA guidelines for indoor air quality in hospital wards.
Article
Green & Sustainable Science & Technology
Mark Daniel G. de Luna, Arianne S. Sioson, Angelo Earvin Sy Choi, Ralf Ruffel M. Abarca, Yao-Hui Huang, Ming-Chun Lu
JOURNAL OF CLEANER PRODUCTION
(2020)
