Facile method of synthesizing multilayer graphene capsuled sulfur nanoparticles for water treatment

Liu，Ping1; Xing，Yimeng1; Liu，Yuxiang1; Si，Zhichun1; Xie，Lin2; Weng，Duan1,3; Kang，Feiyu1,3

2020-02-01

10.1016/j.apsusc.2019.144194

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

1873-5584

Multilayer graphene capsuled sulfur nanoparticles were successfully prepared by adsorption of the sulfur vapor on amorphous activated carbon (AC) at 700 °C. The samples were characterized by BET, SEM, TEM, XPS, FTIR, Raman and Zeta-potential testing measurements and adsorption tests. The results demonstrated that most of the elemental sulfur nanoparticles were in size of 22 nm and located in the mesopores of the graphitized AC. The sulfur nanoparticles were strongly interacting with neighboring carbons by forming –C–S– and –C–SO– bonds. The adsorption capacities of the multilayer graphene capsuled sulfur nanoparticles were 785 mg g for methylene blue and 49 mg g for Cd ions, which showed two times higher Cd adsorption capacity but similar methene blue adsorption capacity compared with the pristine amorphous AC, although the BET surface area and pore volume of AC decreased significantly by sulfur modification. Cd ions mainly chemically adsorbed on sulfur species which did not influence the adsorption capacity of small organics molecules, such as methene blue, in the micropores of AC. The method in this work provides a facile way to prepare a promising metal-free adsorbent for water treatment.

Activated carbon Heavy metal ions Methene blue Multilayer graphene Sulfur nanoparticles

SCI ; EI

英语

其他

National Basic Research Program of China (973 Program)[JCYJ20170817161720484]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000498639000029

Elsevier B.V.

20194307588115

Activated carbon ; Activated carbon treatment ; Adsorption ; Aromatic compounds ; Chemicals removal (water treatment) ; Graphene ; Heavy metals ; Metal ions ; Metal nanoparticles ; Multilayers ; Sulfur

Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Organic Compounds:804.1

MATERIALS SCIENCE

2-s2.0-85073831258

Scopus

1.Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource RecoveryGraduate School at ShenzhenTsinghua University,Shenzhen City,518055,China
2.Department of PhysicsSouthern University of Science and Technology,China
3.The Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua University,Beijing City,10084,China

Liu，Ping,Xing，Yimeng,Liu，Yuxiang,et al. Facile method of synthesizing multilayer graphene capsuled sulfur nanoparticles for water treatment[J]. APPLIED SURFACE SCIENCE,2020,502.

Liu，Ping.,Xing，Yimeng.,Liu，Yuxiang.,Si，Zhichun.,Xie，Lin.,...&Kang，Feiyu.(2020).Facile method of synthesizing multilayer graphene capsuled sulfur nanoparticles for water treatment.APPLIED SURFACE SCIENCE,502.

Liu，Ping,et al."Facile method of synthesizing multilayer graphene capsuled sulfur nanoparticles for water treatment".APPLIED SURFACE SCIENCE 502(2020).