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1.发明授权公开(公告)号：US11932552B2
公开(公告)日：2024-03-19
申请号：US17551655
申请日：2021-12-15
申请人： Alfaisal University
发明人： Souraya Goumri-Said , Mohammed Benali Kanoun , Salamat Ali , Junaid Haider , Ali Haider , Muhammad Ikram
IPC分类号： C01F11/24 , C02F1/58 , C02F1/70 , C08L5/08 , B82Y30/00 , B82Y40/00 , C02F101/30 , C02F103/30
CPC分类号： C01F11/24 , C02F1/58 , C02F1/705 , C08L5/08 , B82Y30/00 , B82Y40/00 , C01P2004/64 , C02F2101/308 , C02F2103/30
摘要： Strontium oxide (SrO) nanoparticle and various concentrations of chitosan (CS)-doped SrO nanocomposite were synthesized via co-precipitation method. A variety of characterization techniques including were done for characterizing and qualifying the nanocomposite. X ray powder diffraction affirmed cubic and tetragonal structure of SrO nanoparticle and CS-doped SrO nanocomposite with a decrease in crystallinity upon doping. Fourier transform infrared spectrum endorsed existing functional groups on CS/SrO surfaces while d-spacing was estimated using high resolution Transmission electron microscopes images. UV-Visible and Photoluminescence spectroscopy spectra showed an increase in band gap energies with an increase in doping concentration. Elemental composition of CS-doped SrO nanocomposite deposited with different doping concentrations was studied using Energy dispersive Spectroscopy. Addition of chitosan resulted in the formation of nanocomposite and rod-like structures that led to enhanced catalytic activity during methylene blue ciprofloxacin degradation in the presence of reducing agent sodium borohydrate at various pH conditions.
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公开(公告)号：US11931378B2
公开(公告)日：2024-03-19
申请号：US17551882
申请日：2021-12-15
申请人： Alfaisal University
发明人： Souraya Goumri-Said , Mohammed Benali Kanoun , Salamat Ali , Junaid Haider , Ali Haider , Muhammad Ikram
摘要： Strontium oxide (SrO) nanoparticle and various concentrations of chitosan (CS)-doped SrO nanocomposite were synthesized via co-precipitation method. A variety of characterization techniques including were done for characterizing and qualifying the nanocomposite. X-ray powder diffraction affirmed cubic and tetragonal structure of SrO nanoparticle and CS-doped SrO nanocomposite with a decrease in crystallinity upon doping. Fourier transform infrared spectrum endorsed existing functional groups on CS/SrO surfaces while d-spacing was estimated using high resolution Transmission electron microscopes images. UV-Visible and Photoluminescence spectroscopy spectra showed an increase in band gap energies with an increase in doping concentration. Elemental composition of CS-doped SrO nanocomposite deposited with different doping concentrations was studied using Energy dispersive Spectroscopy. Addition of chitosan resulted in the formation of nanocomposite and rod-like structures that led to enhanced catalytic activity during methylene blue ciprofloxacin degradation in the presence of reducing agent sodium borohydrate at various pH conditions.
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3.发明公开公开(公告)号：US20230183087A1
公开(公告)日：2023-06-15
申请号：US17551655
申请日：2021-12-15
申请人： Alfaisal University
发明人： Souraya Goumri-Said , Mohammed Benali Kanoun , Salamat Ali , Junaid Haider , Ali Haider , Muhammad Ikram
摘要： Strontium oxide (SrO) nanoparticle and various concentrations of chitosan (CS)-doped SrO nanocomposite were synthesized via co-precipitation method. A variety of characterization techniques including were done for characterizing and qualifying the nanocomposite. X ray powder diffraction affirmed cubic and tetragonal structure of SrO nanoparticle and CS-doped SrO nanocomposite with a decrease in crystallinity upon doping. Fourier transform infrared spectrum endorsed existing functional groups on CS/SrO surfaces while d-spacing was estimated using high resolution Transmission electron rnicroscopes images. UV-Visible and PL Photoluminescence spectroscopy spectra showed an increase in band gap energies with an increase in doping concentration. Elemental composition of CS-doped SrO nanocomposite deposited with different doping concentrations was studied using Energy dispersive Spectroscopy. Addition of chitosan resulted in the formation of nanocomposite and rod-like structures that led to enhanced catalytic activity during methylene blue ciprofloxacin degradation in the presence of reducing agent sodium borohydrate at various pH conditions.
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