刘雅贤等：Cu糁杂对硫化镍精矿制备高效异相类Fenton催化剂Ni,Mg,Cu)Fe2O,的影响 .941· (a) OKLL Mg KLL Ols Fe2p Ni2p Cu2p, NiLMM S1 Mg 2p CIst A人 S2 S3 200 400 600 800 1000 Binding energy/eV (b)Fe 2p S3 (c)Mg 2p S3 84.6% 48.0% 82.7% S2 S2 50.7% Fe 2pan 72.4%、 Satellite Fe>+ Oct. Te 53.6%0ct. 705 710 715720 725 730 47 48 49 50 51 52 Binding energy/eV Binding energy/eV (d)Ni 2p (e)Cu 2p S3 67.3% 65.5% s2 S2 73.6% 59.9% h Ni 2pan Cu2p Satellite Cu2+ 77.1% Satellite Ni2+ Tet. 320% S1 852 855858861864867 930933936939942945 Binding energy/eV Binding energy/eV S1-undoped Cu sample S2-MNi:c=1 0.6 sample:S3-MNi:cu=1 I sample 图4样品的XPS图谱.(a)不同Cu掺杂量铁氧体的XPS全谱图：(b)Fe2p的高分辨图谱：(c)Mg2p的高分辨图谱：(d)Ni2p的高分辨图谱：(e) Cu2p的高分辨图谱 Fig.4 XPS spectra of samples:(a)full XPS spectra of copper-doped ferrites,(b)Fe 2p high resolution spectra;(c)Mg 2p high resolution spectra,(d)Ni 2p high resolution spectra,(e)Cu 2p high resolution spectra 100 (a) 4000 (b) -0min 30 min -60 min 80 3000 90 min 80 120 min 60 2000 40 (Ni,Mg,Cu)Fe,O /visible light 1000 (Ni,Mg,Cu)Fe,O/H,O, -(Ni,Mg,Cu)Fe,O/H.O,/visible light 2030 0- 0 306090120150180 350 400 450500 550600 Reaction time/min Wavelength/nm 图5降解曲线及荧光光谱图.(a)不同催化反应体系中RhB溶液的降解曲线：(b)Nio.63Mgo.3 Cuno7FezO/HzO/可见光催化体系捕获-OH产生2- 羟基对苯二甲酸荧光光谱图 Fig.5 Degradation curves and fluorescence spectra:(a)the degradation curves of RhB solutions in different catalytic reaction systems,(b)fluorescence spectra of 2-hydroxyterephthalic acid produced by the catalytic system of/H2O/vis capturingOH radicalsRelative intensity (b) Fe 2p 705 710 715 720 Binding energy/eV 84.6% 82.7% 72.4% Oct. Tet. Fe 2p3/2 Fe 2p1/2 S1 S2 S3 Satellite Fe3+ 725 730 Relative intensity (c) Mg 2p 47 48 49 50 Binding energy/eV 48.0% 50.7% 53.6% Oct. Tet. S1 S2 S3 51 52 Relative intensity (d) Ni 2p 852 855 858 861 Binding energy/eV 67.3% 73.6% 77.1% Oct. Tet. Ni 2p3/2 S1 S2 S3 Satellite Ni2+ 864 867 Relative intensity (e) Cu 2p 930 933 936 939 Binding energy/eV 65.5% 59.9% 32.0% Oct. Tet. S1 S2 S3 942 945 Cu 2p3/2 Satellite Cu2+ 0 200 Mg 2p C 1s Mg KLL O KLL S1 S2 S3 O 1s Ni LMM Fe 2p Ni 2p Cu 2p (a) 400 600 Binding energy/eV Relative intensity 800 1000 S1—undoped Cu sample; S2—MNi∶Cu=1∶0.6 sample; S3—MNi∶Cu = 1∶1 sample 图 4 样品的 XPS 图谱. （a）不同 Cu 掺杂量铁氧体的 XPS 全谱图；（b）Fe 2p 的高分辨图谱；（c）Mg 2p 的高分辨图谱；（d）Ni 2p 的高分辨图谱；（e） Cu 2p 的高分辨图谱 Fig.4 XPS spectra of samples: (a) full XPS spectra of copper-doped ferrites; (b) Fe 2p high resolution spectra; (c) Mg 2p high resolution spectra; (d) Ni 2p high resolution spectra; (e) Cu 2p high resolution spectra 100 80 60 40 20−30 0 30 60 Reaction time/min (Ct /C0)/ % 90 120 150 180 (Ni, Mg, Cu)Fe2O4 /visible light (a) (Ni, Mg, Cu)Fe2O4 /H2O2 (Ni, Mg, Cu)Fe2O4 /H2O2 /visible light 4000 3000 2000 1000 0 350 400 Wavelength/nm PL intensity (counts) 450 500 550 0 min 30 min 60 min 90 min 120 min 600 (b) 图 5 降解曲线及荧光光谱图. （a）不同催化反应体系中 RhB 溶液的降解曲线；（b）Ni0.63Mg0.30Cu0.07Fe2O4 /H2O2 /可见光催化体系捕获·OH 产生 2- 羟基对苯二甲酸荧光光谱图 Fig.5 Degradation curves and fluorescence spectra: (a) the degradation curves of RhB solutions in different catalytic reaction systems; (b) fluorescence spectra of 2-hydroxyterephthalic acid produced by the catalytic system of Ni0.63Mg0.30Cu0.07Fe2O4 /H2O2 /vis capturing ·OH radicals 刘雅贤等： Cu 掺杂对硫化镍精矿制备高效异相类 Fenton 催化剂 (Ni, Mg, Cu)Fe2O4 的影响 · 941 ·