Antibiotics in our water bodies are a big problem. They harm aquatic life and can make us sick. Scientists have been looking into how to break down these drugs in water. One way is by using a special material called a photocatalyst. This material can use light to break down pollutants like antibiotics. In a recent study, researchers created a unique photocatalyst by combining two materials, Bi

2

MoO

6

 and S

x

@g-C

3

N

(4-

y

)

. This combination forms something called a type-II heterojunction, which is good for breaking down pollutants. The scientists first created S

x

@g-C

3

N

(4-

y

)

 by adding sulfur and nitrogen defects into g-C

3

N

4

. Then, they mixed it with Bi

2

MoO

6

 using a method called solvothermal. One of their samples, BS

x

N

y

 (II), which had 10% S

x

@g-C

3

N

(4-

y

)

, worked really well. It broke down 92. 4% of the antibiotic tetracycline in just 60 minutes. This is much better than either of the materials on their own. The reason it works so well is that it has more active sites and can separate the electrons and holes better. Plus, it can be reused many times and doesn't hurt plants. Isn't that cool?

Reflecting on the Impact of Antibiotic Water Pollution and Innovative Photocatalysts

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