Boron-, sulfur-, and phosphorus-doped graphene for environmental applications

Room-temperature synthesis of water-dispersible sulfur-doped reduced graphene oxide without stabilizers

“…34 Generally, both the CVD method and thermal annealing process will inevitably involve special equipment, high energy input and expensive precursors. 35 The hydrothermal method requires high reaction temperature and long reaction time. In comparison with these high energy-consuming methods, the NaSH-induced reaction is very simple and mild, which enable the reduction and sulfur doping of GO at room temperature, without additional experimental equipment and harsh reaction conditions.…”

One-step generation of S and N co-doped reduced graphene oxide for high-efficiency adsorption towards methylene blue

“…[4][5][6][7][8][9] There are two methods to design the chemical composition of graphene: the surface functionality and heteroatom doping, which can provide active adsorption sites. [10][11][12][13][14][15] The results show that modications are in favor of improvements of adsorption capacity of graphene towards dyes. For instance, Zhong's group 4 prepared a rhamnolipidfunctionalized graphene oxide hybrid with abundant functional groups and mesopores feature by one-step ultrasonication.…”

“…For heteroatom doping, S, B, P and N are the main heteroatoms. The results indicated that co-doping of S and N can improve the reactivity and their potential applications [15][16][17] Several methods such as hydrothermal [18][19][20] or solvothermal 21 method, chemical vapour deposition, 22 reux 23 and thermal annealing 24,25 were developed to prepare S and N co-doped graphenes. Ci's group 26 prepared S and N co-doped graphene aerogel using thiourea as a S and N source to adsorb radioiodine in nuclear waste with a maximum iodine adsorption capacity up to 999 mg g À1 at 298 K. Feng and his coworkers investigated the adsorption performance of S and N co-doped graphene hydrogels onto malachite green.…”

B, N Co‐doped Nanocarbon Derived In Situ from Nanoboron Carbide as Electrocatalyst for Oxygen Reduction Reaction

“…Particularly, multi‐component doping can provide more active sites than single‐component doping. Thus, multi‐component doped carbons exhibit superior electrochemical activity than single‐component doped carbons [12–14] . For instance, N−P co‐doped carbon spheres [15] , N−I co‐doped microporous carbon [16] and N−S co‐doped porous carbons [17] reveal enhanced ORR electrocatalytic performance compared with the corresponding single‐component doped carbons.…”