In this study, three mesoporous-activated crab shell biochars were prepared by carbonation and chemical activation with KOH (K-CSB), HPO (P-CSB), and KMnO (M-CSB) to evaluate their tetracycline (TC) adsorption capacities. Characterization by SEM and a porosity analysis revealed that the K-CSB, P-CSB, and M-CSB possessed a puffy, mesoporous structure, with K-CSB exhibiting a larger specific surface area (1738 m/g). FT-IR analysis revealed that abundant, surface ox-containing functional groups possessed by K-CSB, P-CSB, and M-CSB, such as -OH, C-O, and C=O, enhanced adsorption for TC, thereby enhancing their adsorption efficiency for TC. The maximum TC adsorption capacities of the K-CSB, P-CSB, and M-CSB were 380.92, 331.53, and 281.38 mg/g, respectively. The adsorption isotherms and kinetics data of the three TC adsorbents fit the Langmuir and pseudo-second-order model. The adsorption mechanism involved aperture filling, hydrogen bonding, electrostatic action, π-π EDA action, and complexation. As a low-cost and highly effective adsorbent for antibiotic wastewater treatment, activated crab shell biochar has enormous application potential.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10000494 | PMC |
| http://dx.doi.org/10.3390/foods12051042 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Nano-TiO impairs the health of crabs Charybdis japonica under warming conditions through waterborne and dietary exposures.
J Hazard Mater
January 2025
International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China. Electronic address:
The widespread use of nano titanium dioxide (nano-TiO₂) poses ecological risks to marine ecosystems, especially when combined with ocean warming. However, most previous studies have only examined water-related exposures, leaving a gap in research on the impact of food transfer on organisms. In this work, the harmful impacts of nano-TiO on the Japanese swimming crab Charybdis japonica were studied through three scenarios: direct exposure (DE) of the crabs to warming and nano-TiO, indirect exposure (IE) via consumption of thick-shelled mussels Mytilus coruscus exposed to the same conditions, and combined exposure (CE), where crabs were directly subjected to warming and nano-TiO while feeding affected mussels.
View Article and Find Full Text PDFDevelopment of a Multifunctional Chitosan-Based Composite Film from Crab Shell () and Algae () with Enhanced Antioxidant and Antimicrobial Properties for Active Food Packaging.
Foods
December 2024
Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Seville, Spain.
Eco-friendly, bioactive and edible films from renewable resources are increasingly regarded as viable replacements for petroleum-based packaging. This study investigates the application of macroalgae powder (ULP) as an active additive in crab () chitosan-based films for natural food packaging. Films with ULP concentrations of 0.
View Article and Find Full Text PDFWhole-Genome Sequencing Reveals the Progress of Genetic Breeding in .
Animals (Basel)
January 2025
Suqian Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Suqian 223800, China.
is an important and popular crustacean species in China, producing huge economic benefits. Large individuals of are preferred due to market demand. The long-term goal of our research group is to produce a new variety of with better growth performance and stronger abilities to resist environmental changes through mass selection.
View Article and Find Full Text PDFCan morphometrics and shell preference behaviour be a tool for hermit crab species identification?
Mar Environ Res
January 2025
Department of Ocean Studies and Marine Biology, Pondicherry University, Andaman Campus, Andaman & Nicobar Islands, Port Blair, 744112, India. Electronic address:
The hermit crabs are 'ecosystem engineers' and are a critical link in the oceanic food web. Six species of genus Coenobita are reported in the group of Andaman and Nicobar Islands namely, Coenobita rugosus, C. brevimanus, C.
View Article and Find Full Text PDFIdentification and Characterization of the Y-Organ of Orange Mud Crab Scylla Olivacea.
Microsc Res Tech
December 2024
Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia.
The Y-organs (YOs) synthesize and secrete molting hormones, and thus regulate crustacean growth and reproduction. However, the YOs of the orange mud crab Scylla olivacea is yet to be described due to its minute size and ambiguous feature. This study describes the location, morphological characteristics, histology, and the changes of YOs at different molt stages, and examines in vitro ecdysteroid secreted by the YOs of S.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!