Chlorobenzoic Acids are toxic organic compounds largely distributed in soils and sediments. They can be degraded to various products by microorgans. This paper is a review of the literature on biodegradability of the ...Chlorobenzoic Acids are toxic organic compounds largely distributed in soils and sediments. They can be degraded to various products by microorgans. This paper is a review of the literature on biodegradability of the chlorobenzoic acids. The degradation pathways, degradation genes, role of transposable elements, and construction of strains are discussed. A brief introduction is given on the environmental impacts and the pollution control.展开更多
Three kinds of novel hydroxyapatite@terbium complex core-shell composites were synthesized with 2-chlorobenzoic acid,4-chlorobenzoic acid,and 2,4-dichlorobenzoic acid as the ligand,respectively.The XRD,UV/vis absorpti...Three kinds of novel hydroxyapatite@terbium complex core-shell composites were synthesized with 2-chlorobenzoic acid,4-chlorobenzoic acid,and 2,4-dichlorobenzoic acid as the ligand,respectively.The XRD,UV/vis absorption and FT-IR results show that terbium ions are coordinated with ligands and the corresponding complexes are successfully included into composites.SEM and EDS results reveal that Tb complexes are fully and homogenously coated on the surface of hydroxyapatite(HAP)microspheres consisting of a large number of nanosized crystals.The strongest luminescence properties are obtained when 2,4-dichlorobenzoic acid is used as ligand.The study on fluorescence lifetime of composites shows that the lifetime is inversely related to emission intensity.TGA-DSC results indicate that the core-shell composites have an excellent thermal stability.Therefore,the current core-shell structure provides a cost-effective route to manufacture of biocompatible and heatresistant highly luminescent materials.展开更多
文摘Chlorobenzoic Acids are toxic organic compounds largely distributed in soils and sediments. They can be degraded to various products by microorgans. This paper is a review of the literature on biodegradability of the chlorobenzoic acids. The degradation pathways, degradation genes, role of transposable elements, and construction of strains are discussed. A brief introduction is given on the environmental impacts and the pollution control.
基金Project supported by the Major Project of Natural Science Research in Universities of Anhui Province(KJ2018ZD037,KJ2016A550)Horizontal Cooperation Project of Fuyang Municipal Government and Fuyang Normal University(XDHX201717,XDHX2016011,XDHX2016004)。
文摘Three kinds of novel hydroxyapatite@terbium complex core-shell composites were synthesized with 2-chlorobenzoic acid,4-chlorobenzoic acid,and 2,4-dichlorobenzoic acid as the ligand,respectively.The XRD,UV/vis absorption and FT-IR results show that terbium ions are coordinated with ligands and the corresponding complexes are successfully included into composites.SEM and EDS results reveal that Tb complexes are fully and homogenously coated on the surface of hydroxyapatite(HAP)microspheres consisting of a large number of nanosized crystals.The strongest luminescence properties are obtained when 2,4-dichlorobenzoic acid is used as ligand.The study on fluorescence lifetime of composites shows that the lifetime is inversely related to emission intensity.TGA-DSC results indicate that the core-shell composites have an excellent thermal stability.Therefore,the current core-shell structure provides a cost-effective route to manufacture of biocompatible and heatresistant highly luminescent materials.
